Wissenschaftliche Artikel

Danner, A., Geerits, N., Lemmel, H., Wagner, R., Sponar, S., & Hasegawa, Y. (2024). Three-path quantum Cheshire cat observed in neutron interferometry. Communications Physics, 7, Article 14. https://doi.org/10.1038/s42005-023-01494-5 ( reposiTUm)
Danner, A., Masiello, I. V., Dvorak, A., Kersten, W. N., Lemmel, H., Wagner, R., & Hasegawa, Y. (2024). Simultaneous path weak-measurements in neutron interferometry. Scientific Reports, 14(1), Article 25994. https://doi.org/10.1038/s41598-024-76167-6 ( reposiTUm)
Wagner, R., Kersten, W., Lemmel, H., Sponar, S., & Hasegawa, Y. (2023). Quantum causality emerging in a delayed-choice quantum Cheshire Cat experiment with neutrons. Scientific Reports, 13(1), Article 3865. https://doi.org/10.1038/s41598-023-29970-6 ( reposiTUm)
Danner, A., Lemmel, H., Wagner, R., Sponar, S., & Hasegawa, Y. (2023). Neutron Interferometer Experiments Studying Fundamental Features of Quantum Mechanics. Atoms, 11(6), Article 98. https://doi.org/10.3390/atoms11060098 ( reposiTUm)
Sponar, S., Sedmik, R. I. P., Pitschmann, M., Abele, H., & Hasegawa, Y. (2021). Tests of fundamental quantum mechanics and dark interactions with low-energy neutrons. Nature Reviews Physics, 3(5), 309–327. https://doi.org/10.1038/s42254-021-00298-2 ( reposiTUm)
Sponar, S., Danner, A., Ozawa, M., & Hasegawa, Y. (2021). Neutron optical test of completeness of quantum root-mean-square errors. Npj Quantum Information, 7(106). https://doi.org/10.1038/s41534-021-00437-8 ( reposiTUm)
Sponar, S., Danner, A., Pecile, V., Einsidler, N., Demirel, B., & Hasegawa, Y. (2021). Experimental test of entropic noise-disturbance uncertainty relations for three-outcome qubit measurements. Physical Review Research, 3(023175). https://doi.org/10.1103/physrevresearch.3.023175 ( reposiTUm)
Demirel, B., Sponar, S., & Hasegawa, Y. (2020). Measurements of Entropic Uncertainty Relations in Neutron Optics. Applied Sciences, 10(3), 1087. https://doi.org/10.3390/app10031087 ( reposiTUm)
Danner, A., Demirel, B., Kersten, W., Lemmel, H., Wagner, R., Sponar, S., & Hasegawa, Y. (2020). Spin-rotation coupling observed in neutron interferometry. Npj Quantum Information, 6(23). https://doi.org/10.1038/s41534-020-0254-8 ( reposiTUm)
Sponar, S., Danner, A., Obigane, K., Hack, S., & Hasegawa, Y. (2020). Experimental test of tight state-independent preparation uncertainty relations for qubits. Physical Review A, 102(042204). https://doi.org/10.1103/physreva.102.042204 ( reposiTUm)
Demirel, B., Sponar, S., Abbott, A. A., Branciard, C., & Hasegawa, Y. (2019). Experimental test of an entropic measurement uncertainty relation for arbitrary qubit observables. New Journal of Physics, 21(1), 013038. https://doi.org/10.1088/1367-2630/aafeeb ( reposiTUm)
Blaickner, M., Demirel, B., Drevenšek-Olenik, I., Fally, M., Flauger, P., Geltenbort, P., Hasegawa, Y., Kurinjimala, R., Ličen, M., Pruner, C., Sponar, S., Tomita, Y., & Klepp, J. (2019). Monte-Carlo simulation of neutron transmission through nanocomposite materials for neutron-optics applications. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 916, 154–157. https://doi.org/10.1016/j.nima.2018.11.074 ( reposiTUm)
Kersten, W., Brandl, L., Wagner, R., Huber, C., Bruckner, F., Hasegawa, Y., Suess, D., & Sponar, S. (2019). Additive-Manufactured and Topology-Optimized Permanent-Magnet Spin Rotator for Neutron Interferometry. Physical Review Applied, 12(014023). https://doi.org/10.1103/physrevapplied.12.014023 ( reposiTUm)
Danner, A., Demirel, B., Sponar, S., & Hasegawa, Y. (2019). Development and perfomance of a miniaturised spin rotator suitable for neutron interferometer experiments. Journal of Physics Communications, 3(3), Article 035001. https://doi.org/10.1088/2399-6528/ab0805 ( reposiTUm)
Geppert-Kleinrath, H., Denkmayr, T., Sponar, S., Lemmel, H., Jenke, T., & Hasegawa, Y. (2018). Multifold paths of neutrons in the three-beam interferometer detected by a tiny energy kick. Physical Review A, 97(052111). https://doi.org/10.1103/physreva.97.052111 ( reposiTUm)
Denkmayr, T., Dressel, J., Geppert-Kleinrath, H., Hasegawa, Y., & Sponar, S. (2018). Weak values from strong interactions in neutron interferometry. Physica B: Condensed Matter, 551, 339–346. https://doi.org/10.1016/j.physb.2018.04.014 ( reposiTUm)
Denkmayr, T., Geppert, H., Lemmel, H., Waegell, M., Dressel, J., Hasegawa, Y., & Sponar, S. (2017). Experimental Demonstration of Direct Path State Characterization by Strongly Measuring Weak Values in a Matter-Wave Interferometer. Physical Review Letters, 118(010402). https://doi.org/10.1103/physrevlett.118.010402 ( reposiTUm)
Waegell, M., Denkmayr, T., Geppert, H., Ebner, D., Jenke, T., Hasegawa, Y., Sponar, S., Dressel, J., & Tollaksen, J. (2017). Confined contextuality in neutron interferometry: Observing the quantum pigeonhole effect. Physical Review A, 96(052131). https://doi.org/10.1103/physreva.96.052131 ( reposiTUm)
Sponar, S., Denkmayr, T., Geppert, H., & Hasegawa, Y. (2016). Fundamental Features of Quantum Dynamics studied in Matter-Wave Interferometry - Spin Weak Values and the Quantum Cheshire-Cat. Atoms, 4(1), 11. https://doi.org/10.3390/atoms4010011 ( reposiTUm)
Demirel, B., Sponar, S., Sulyok, G., Ozawa, M., & Hasegawa, Y. (2016). Experimental Test of Residual Error-Disturbance Uncertainty Relations for Mixed Spin-½ States. Physical Review Letters, 117(140402). https://doi.org/10.1103/physrevlett.117.140402 ( reposiTUm)
Sulyok, G., Sponar, S., Demirel, B., Buscemi, F., Hall, M. J. W., Ozawa, M., & Hasegawa, Y. (2015). Experimental Test of Entropic Noise-Disturbance Uncertainty Relations for Spin-1/2 Measurements. Physical Review Letters, 115(030401). https://doi.org/10.1103/physrevlett.115.030401 ( reposiTUm)
Hasegawa, Y. (2015). Uncertainty relation and quantum Cheshire-Cat: studied with neutron polarimeter and interferometer. Current Science, 109, 1–8. http://hdl.handle.net/20.500.12708/152036 ( reposiTUm)
Sponar, S., Denkmayr, T., Geppert, H., Lemmel, H., Matzkin, A., Tollaksen, J., & Hasegawa, Y. (2015). Weak values obtained in matter-wave interferometry. Physical Review A, 92(062121). https://doi.org/10.1103/physreva.92.062121 ( reposiTUm)
Demirel, B., Sponar, S., & Hasegawa, Y. (2015). Measurement of the spin-rotation coupling in neutron polarimetry. New Journal of Physics, 17(2), 023065. https://doi.org/10.1088/1367-2630/17/2/023065 ( reposiTUm)
Hasegawa, Y. (2014). Investigations of fundamental phenomena in quantum mechanics with neutrons. Journal of Physics: Conference Series, 504, 012025. https://doi.org/10.1088/1742-6596/504/1/012025 ( reposiTUm)
Sponar, S., Klepp, J., Schmitzer, C., Bartosik, H., Durstberger-Rennhofer, K., Badurek, G., & Hasegawa, Y. (2014). Tests of alternative quantum theories with neutrons. AIP Conference Proceedings. https://doi.org/10.1063/1.4903089 ( reposiTUm)
Erdösi, D., Huber, M., Hiesmayr, B. C., & Hasegawa, Y. (2014). Tripartite entanglement in single-neutron interferometer experiments. AIP Conference Proceedings. https://doi.org/10.1063/1.4903081 ( reposiTUm)
Sponar, S., Sulyok, G., Erhart, J., & Hasegawa, Y. (2014). Error-disturbance uncertainty relations in neutron-spin measurements. Advances in High Energy Physics, 2014, 1–6. https://doi.org/10.1155/2014/735398 ( reposiTUm)
Geppert, H., Denkmayr, T., Sponar, S., Lemmel, H., & Hasegawa, Y. (2014). Improvement of the polarized neutron interferometer setup demonstrating violation of a Bell-like inequality. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 763, 417–423. https://doi.org/10.1016/j.nima.2014.06.080 ( reposiTUm)
Klepp, J., Sponar, S., & Hasegawa, Y. (2014). Fundamental phenomena of quantum mechanics explored with neutron interferometers. Progress of Theoretical and Experimental Physics, 2014(8). https://doi.org/10.1093/ptep/ptu085 ( reposiTUm)
Denkmayr, T., Geppert, H., Sponar, S., Lemmel, H., Matzkin, A., Tollaksen, J., & Hasegawa, Y. (2014). Observation of a quantum Cheshire Cat in a matter-wave interferometer experiment. Nature Communications, 5(4492). https://doi.org/10.1038/ncomms5492 ( reposiTUm)
de Haan, V.-O., Plomp, J., van Well, A. A., Rekveldt, M. T., Hasegawa, Y. H., Dalgliesh, R. M., & Steinke, N.-J. (2014). Measurement of gravitation-induced quantum interference for neutrons in a spin-echo spectrometer. Physical Review A, 89(063611). https://doi.org/10.1103/physreva.89.063611 ( reposiTUm)
Erdösi, D., Huber, M., Hiesmayr, B. C., & Hasegawa, Y. (2013). Proving the Generation of Genuine Multipartite Entanglement in a Single-Neutron Interferometer Experiment. New Journal of Physics, 15(2), 023033. https://doi.org/10.1088/1367-2630/15/2/023033 ( reposiTUm)
Böck, H., Hasegawa, Y., Jericha, E., Steinhauser, G., & Villa, M. (2013). The past and the future of the TRIGA reactor Vienna. Journal of Energy and Power Engineering, 7, 654–660. http://hdl.handle.net/20.500.12708/155621 ( reposiTUm)
Sulyok, G., Sponar, S., Erhart, J., Badurek, G., Ozawa, M., & Hasegawa, Y. (2013). Violation of Heisenberg’s error-disturbance uncertainty relation in neutron-spin measurements. Physical Review A, 88(022110). https://doi.org/10.1103/physreva.88.022110 ( reposiTUm)
Sponar, S., Klepp, J., Durstberger-Rennhofer, K., Schmitzer, C., Bartosik, H., Geppert, H., Both, M., Badurek, G., & Hasegawa, Y. (2012). High-efficiency manipulations of triply entangled states in neutron polarimetry. New Journal of Physics, 14(5), 053032. https://doi.org/10.1088/1367-2630/14/5/053032 ( reposiTUm)
Hasegawa, Y., Schmitzer, C., Bartosik, H., Klepp, J., Sponar, S., Durstberger-Rennhofer, K., & Badurek, G. (2012). Falsification of Leggett’s model using neutron matter waves. New Journal of Physics, 14(2), 023039. https://doi.org/10.1088/1367-2630/14/2/023039 ( reposiTUm)
Hasegawa, Y. (2012). Entanglement between degrees of freedom in a single-particle system revealed in neutron interferometry. Foundations of Physics, 42(1), 29–45. https://doi.org/10.1007/s10701-010-9499-y ( reposiTUm)
Hasegawa, Y. (2012). Offence and defence around the uncertainty relation. Parity Japan, 27, 44–48. http://hdl.handle.net/20.500.12708/164375 ( reposiTUm)
Hasegawa, Y. (2012). Quantum interference with neutrons. Suri-Kagaku (Mathematical Science), 585, 42–48. http://hdl.handle.net/20.500.12708/164377 ( reposiTUm)
Erhart, J., Sponar, S., Sulyok, G., Badurek, G., Ozawa, M., & Hasegawa, Y. (2012). Experimental demonstration of a universally valid error-disturbance uncertainty relation in spin measurements. Nature Physics, 8(3), 185–189. https://doi.org/10.1038/nphys2194 ( reposiTUm)
Hasegawa, Y., & Rauch, H. (2011). Quantum phenomena explored with neutrons. New Journal of Physics, 13(11), 115010. https://doi.org/10.1088/1367-2630/13/11/115010 ( reposiTUm)
Sponar, S., Klepp, J., Zeiner, C., Badurek, G., & Hasegawa, Y. (2010). Violation of a Bell-like inequality for spin-energy entanglement in neutron polarimetry. Physics Letters A, 374(3), 431–434. https://doi.org/10.1016/j.physleta.2009.11.017 ( reposiTUm)
Sulyok, G., Hasegawa, Y., Klepp, J., Lemmel, H., & Rauch, H. (2010). Noise-induced dephasing in neutron interferometry. Physical Review A, 81(053609). https://doi.org/10.1103/physreva.81.053609 ( reposiTUm)
Sponar, S., Klepp, J., Durstberger-Rennhofer, K., Loidl, R., Filipp, S., Lettner, M., Bertlmann, R. A., Badurek, G., Rauch, H., & Hasegawa, Y. (2010). New aspects of geometric phases in experiments with polarized neutrons. Journal of Physics A: Mathematical and Theoretical, 43(35), 354015. https://doi.org/10.1088/1751-8113/43/35/354015 ( reposiTUm)
Hasegawa, Y., Durstberger-Rennhofer, K., Sponar, S., & Rauch, H. (2010). Kochen-Specker theorem studied with neutron interferometer. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 234, 521–524. http://hdl.handle.net/20.500.12708/167805 ( reposiTUm)
Sponar, S., Klepp, J., Loidl, R., Filipp, S., Durstberger-Rennhofer, K., Bertlmann, R. A., Badurek, G., Rauch, H., & Hasegawa, Y. (2010). Geometric phase in entangled systems: A single-neutron interferometer experiment. Physical Review A, 81(042113). https://doi.org/10.1103/physreva.81.042113 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Durstberger-Rennhofer, K., Sponar, S., & Rauch, H. (2010). Engineering of triply entangled states in a single-neutron system. Physical Review A, 81(032121). https://doi.org/10.1103/physreva.81.032121 ( reposiTUm)
Hasegawa, Y., Badurek, G., Filipp, S., Klepp, J., Loidl, R., Sponar, S., & Rauch, H. (2009). Entanglement between degrees of freedom of single-neutrons. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 611(2–3), 310–313. https://doi.org/10.1016/j.nima.2009.07.060 ( reposiTUm)
Bartosik, H., Klepp, J., Schmitzer, C., Sponar, S., Cabello, A., Rauch, H., & Hasegawa, Y. (2009). Experimental test of quantum contextuality in neutron interferometry. Physical Review Letters, 103(040403). https://doi.org/10.1103/physrevlett.103.040403 ( reposiTUm)
Filipp, S., Klepp, J., Plonka, C., Schmidt, U., Geltenbort, P., Hasegawa, Y., & Rauch, H. (2009). Characterization of a new ultra-cold neutron storage setup for arbitrary 3D-spin control. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 598(2), 571–577. https://doi.org/10.1016/j.nima.2008.09.053 ( reposiTUm)
Filipp, S., Klepp, J., Hasegawa, Y., Plonka-Spehr, C., Schmidt, U., Geltenbort, P., & Rauch, H. (2009). Experimental Demonstration of the Stability of Berry’s Phase for a Spin-1/2  Particle. Physical Review Letters, 102(030404). https://doi.org/10.1103/physrevlett.102.030404 ( reposiTUm)
Sponar, S., Klepp, J., Badurek, G., & Hasegawa, Y. (2008). Zero-field and Larmor spinor precessions in a neutron polarimeter experiment. Physics Letters A, 372(18), 3153–3156. https://doi.org/10.1016/j.physleta.2008.01.070 ( reposiTUm)
Sponar, S., Klepp, J., Loidl, R., Filipp, S., Badurek, G., Hasegawa, Y., & Rauch, H. (2008). Coherent energy manipulation in single-neutron interferometry. Physical Review A, 78(061604). https://doi.org/10.1103/physreva.78.061604 ( reposiTUm)
Klepp, J., Sponar, S., Filipp, S., Lettner, M., Badurek, G., & Hasegawa, Y. (2008). Observation of Nonadditive Mixed-State Phases with Polarized Neutrons. Physical Review Letters, 101(150404). https://doi.org/10.1103/physrevlett.101.150404 ( reposiTUm)
Cabello, A., Filipp, S., Rauch, H., & Hasegawa, Y. (2008). Proposed Experiment for Testing Quantum Contextuality with Neutrons. Physical Review Letters, 100(130404). https://doi.org/10.1103/physrevlett.100.130404 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Filipp, S., Klepp, J., & Rauch, H. (2007). Evidence for entanglement and full tomographic analysis of Bell states in a single-neutron system. Physical Review A, 76, 052108-1-052108–6. http://hdl.handle.net/20.500.12708/169145 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Baron, M., & Rauch, H. (2006). Quantum Contextuality in a Single-Neutron Optical Experiment. Physical Review Letters, 97, 23040-1-23040–23044. http://hdl.handle.net/20.500.12708/172718 ( reposiTUm)
Sponar, S., Klepp, J., Hasegawa, Y., Jericha, E., & Badurek, G. (2006). Non-Cyclic Geometric Phases in Mixed State Neutron Polarimetry. Acta Phys. Hung. B, 26(1–2), 165–171. http://hdl.handle.net/20.500.12708/172785 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Filipp, S., Klepp, J., & Rauch, H. (2006). Quantum Contextuality Induced by Spin-Path Entanglement in Single-Neutrons. Acta Phys. Hung. B, 26(1/2), 157–164. http://hdl.handle.net/20.500.12708/172786 ( reposiTUm)
Badurek, G., Facchi, P., Hasegawa, Y., Hradil, Z., Pascacio, S., Rauch, H., Rehacek, J., & Yoneda, T. (2006). Neutron wave-packet tomography. Physical Review A, 73, 032110-1-032110–032116. http://hdl.handle.net/20.500.12708/172650 ( reposiTUm)
Hasegawa, Y., Loidl, R., Baron, M., Badurek, G., & Rauch, H. (2006). Quantum contextuality in neutron interferometer experiments. Physica B: Condensed Matter, 385–386, 1377–1380. http://hdl.handle.net/20.500.12708/172791 ( reposiTUm)
Rauch, H., Baron, M., Filipp, S., Hasegawa, Y., Lemmel, H., & Loidl, R. (2006). Hidden observables in neutron quantum interferometry. Physica B: Condensed Matter, 385–386, 1359–1364. https://doi.org/10.1016/j.physb.2006.05.184 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., & Rauch, H. (2006). State Space Geometry of a Double-Loop Interferometer. Acta Phys. Hung. B, 26(1–2), 173–180. http://hdl.handle.net/20.500.12708/172799 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., & Rauch, H. (2005). Noncyclic geometric phase due to spatial evolution in a neutron interferoemter. Physical Review A, 72, 021602-1-021602–021604. http://hdl.handle.net/20.500.12708/172383 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., & Rauch, H. (2005). Spatial Non-Cyclic Geometric Phase in Neutron Interferometry. Journal of Research of the National Institute of Standards and Technology, 110, 251–257. http://hdl.handle.net/20.500.12708/172385 ( reposiTUm)
Klepp, J., Sponar, S., Hasegawa, Y., Jericha, E., & Badurek, G. (2005). Noncyclic Pancharatnam phase for mixed state SU(2) evolution in neutron polarimetry. Physics Letters A, 342, 48–52. http://hdl.handle.net/20.500.12708/172331 ( reposiTUm)

Beiträge in Tagungsbänden

Wagner, R., Brandl, L., Kersten, W., Sponar, S., Hasegawa, Y., Huber, C., Bruckner, F., & Suess, D. (2019). 3D printed magnets for neutron spin manipulation. In International Workshop on Particle Physics at Neutron Sources (PPNS 2018) (Vol. 219). https://doi.org/10.1051/epjconf/201921910008 ( reposiTUm)
Hasegawa, Y. (2012). Uncertainity relation studied with neutrons. In Proceedings of the Physical Society of Japan (pp. 398–402). Nihon Butsuri Gakkai. https://doi.org/10.11316/butsuri.67.6_398 ( reposiTUm)
Böck, H., Hasegawa, Y., Jericha, E., Steinhauser, G., & Villa, M. (2012). The Past and the Future of the TRIGA Reactor Vienna. In I. Jencic (Ed.), Nuclear Energy for New Europe 2011 (p. 9). http://hdl.handle.net/20.500.12708/44716 ( reposiTUm)
Sponar, S., Klepp, J., Loidl, R., Durstberger-Rennhofer, K., Geppert, H., Badurek, G., Rauch, H., & Hasegawa, Y. (2012). Triple Entanglement in Neutron Interferometric and Polarimetric Experiments. In Journal of Physics: Conference Series (p. 012044). Journal of Physics: Conference Series. https://doi.org/10.1088/1742-6596/340/1/012044 ( reposiTUm)
Durstberger-Rennhofer, K., Bertlmann, R. A., Hasegawa, Y., & Rauch, H. (2009). Decoherence, Neutron Interferometry and Geometry. In 2nd Vienna Symposium on the Foundations of modern Physics 2009 in honour of Daniel Greenberger and Helmut Rauch. 2nd Vienna Symposium on the Foundations of modern Physics 2009 in honour of Daniel Greenberger and Helmut Rauch, Wien, Austria. http://hdl.handle.net/20.500.12708/44541 ( reposiTUm)
Klepp, J., Sponar, S., Filipp, S., Lettner, M., Badurek, G., & Hasegawa, Y. (2008). Nonadditivity of Quantum Phases for mixed States. In Proceedings of the Junior Scientist Conference 2008 (pp. 129–130). Vienna University of Technology. http://hdl.handle.net/20.500.12708/44467 ( reposiTUm)

Beiträge in Büchern

Hasegawa, Y. (2016). What Does Quantum Theory Tell Us? A Matter-Wave Approach. In Quantum [Un]Speakables II (pp. 393–411). Springer-Verlag. https://doi.org/10.1007/978-3-319-38987-5_24 ( reposiTUm)
Klepp, J., Sponar, S., Filipp, S., Lettner, M., Badurek, G., & Hasegawa, Y. (2009). Nonadditive mixed state phase in neutron optics. In Foundations of Probability and Physics - 5 (pp. 314–318). American Institute of Physics. http://hdl.handle.net/20.500.12708/26708 ( reposiTUm)

Präsentationen

Hasegawa, Y. (2023, September 27). Neutrons on the run [Conference Presentation]. From GHZ to Tic Tac Toe: Symposium to celebrate Danny Greenberger’s 90th birthday 2023, Wien, Austria. ( reposiTUm)
Hasegawa, Y. (2023, February 10). Foundation of quantum mechanics studies with neutrons [Presentation]. Workshop “Aspects of Quantum Information and Quantum Foundations” 2023, Tokyo, Japan. ( reposiTUm)
Danner, A., Kazuma Obigane, Geerits, N., Lemmel, H., Wagner, R., & hasegawa, yuji. (2022, September). Three-Path Quantum Cheshire Cat Observed in Neutron Interferometry [Poster Presentation]. FOMO 2022, Trieste, Italy. http://hdl.handle.net/20.500.12708/153511 ( reposiTUm)
Danner, A., Obigane, K., Geerits, N., Lemmel, H., Wagner, R., Sponar, S., & Hasegawa, Y. (2021). Three path quantum Cheshire Cat observed in neutron interferometry. ÖPG-SPS Jahrestagung 2021, Innsbruck, Austria, Austria. http://hdl.handle.net/20.500.12708/135476 ( reposiTUm)
Hasegawa, Y. (2019). Quantum Paradox emerging in matter-wave interferometer experiments. New perspective of weak value and weak measurement (2019), Tsukuba, Japan. http://hdl.handle.net/20.500.12708/134870 ( reposiTUm)
Hasegawa, Y. (2019). Neutron Interferometer Experiments at Atominstitut: status quo. Quantum forever, Symposium to honor H. Rauch´s 80th birthday and the designation of the Atominsitut as an EPS historic site (2019), Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/134871 ( reposiTUm)
Danner, A., Demirel, B., Kersten, W., Lemmel, H., Sponar, S., Wagner, R., & Hasegawa, Y. (2018). Observation of Spin-Rotation Coupling in Neutron Optics. 681. WE-Heraeus-Seminar on Particle Physics with Cold and Ultra-Cold Neutrons (2018), Bad Honnef, Germany. http://hdl.handle.net/20.500.12708/134511 ( reposiTUm)
Sponar, S., & Hasegawa, Y. (2018). Weak Values & Quantum Paradoxes: Experimental Studies in Neutron Optics. AAV Anniversary Conference - Celebrating 30 Years of Weak Values, Chapman University, United States of America (the). http://hdl.handle.net/20.500.12708/133978 ( reposiTUm)
Hasegawa, Y. (2018). Quantum Paradox emerging in matter-wave interferometer experiments. QMNH 2018, Tsukuba, Japan. http://hdl.handle.net/20.500.12708/133996 ( reposiTUm)
Hasegawa, Y. (2018). Fundamental phenomena in quantum mechanics studied in matter-wave optical setup - Quantum Cheshire-Cat and revised uncertainty relation. ISNFQC 2018, Kolkata, India. http://hdl.handle.net/20.500.12708/133995 ( reposiTUm)
Namba, S., Hung, D. T., Hasegawa, Y., Kishimoto, M., Nishikino, M., Seres, J., & Serrat, C. (2018). Fully coherent plasma x-ray laser by injection of a parametrically amplified high-order harmonic beam. 60th Annual Meeting of the APS Division of Plasma Physics (2018), Portland, United States of America (the). http://hdl.handle.net/20.500.12708/134539 ( reposiTUm)
Hasegawa, Y. (2017). Counter-intuitive phenomena in quantum mechanics emerging in matter-wave optical experiments. 6th International Conference on New Frontiers in physics, Quantum Foundations and Quantum Information (2017), Kreta, Greece. http://hdl.handle.net/20.500.12708/133592 ( reposiTUm)
Hasegawa, Y. (2017). Fundamental phenomena of quantum mechanics studied with matter-wave (neutron) optical setup. Seminar Talk, Poznan University of Technology, Poland. http://hdl.handle.net/20.500.12708/133654 ( reposiTUm)
Hasegawa, Y. (2016). Experimental studies of foundation of quantum mechanics. Nanoscience and quantum physics special seminar 2016, Tokyo, Japan, Non-EU. http://hdl.handle.net/20.500.12708/132649 ( reposiTUm)
Hasegawa, Y. (2016). Foundation of quantum mechanics studied in matter-wave optics - Quantum Cheshire-Cat and uncertainty relations -. International Conference on Quantum Physics and Nuclear Engineering 2016, London, GB, EU. http://hdl.handle.net/20.500.12708/132648 ( reposiTUm)
Hasegawa, Y. (2016). Observability of quantum dynamics via weak values. KEK Workshop 2016, Tsukuba, Japan, Non-EU. http://hdl.handle.net/20.500.12708/132647 ( reposiTUm)
Mach, W., Abele, H., Filter, H., Hasegawa, Y., Jenke, T., Lemmel, H., Jericha, E., Konrad, G., Sponar, S., Villa, M., & Zawisky, M. (2016). Current projects at the Atominstitut. NuPECC meeting Mini Workshop Wien (2016), Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/133299 ( reposiTUm)
Hasegawa, Y. (2016). Residual uncertainties: experimental rests of error/noise-disturbance uncertainty relations in various forms. 35th Quantum Information Technology Symposium (QIT35) (2016), Tsukuba, Japan, Non-EU. http://hdl.handle.net/20.500.12708/133084 ( reposiTUm)
Hasegawa, Y. (2016). Quantum paradoxes emerging in matter-wave interferometer experiments. International Conference on Concept and paradoxes in a quantum universe (2016), Waterloo, Canada, Non-EU. http://hdl.handle.net/20.500.12708/132725 ( reposiTUm)
Hasegawa, Y. (2016). Foundation of quantum mechanics studied with neutron matter-waves. IRC Seminar 2016, Kyoto, Japan, Non-EU. http://hdl.handle.net/20.500.12708/132652 ( reposiTUm)
Hasegawa, Y. (2016). Foundation of quantum mechanics studied with neutron matter-waves. Applied Physics Seminar 2016, Sapporo, Japan, Non-EU. http://hdl.handle.net/20.500.12708/132651 ( reposiTUm)
Hasegawa, Y. (2016). Quantum Cheshire-Cat in a double slit experiment with neutrons. Seminar, Ecole Centrale Paris, EU. http://hdl.handle.net/20.500.12708/132650 ( reposiTUm)
Mach, W., Abele, H., Filter, H., Hasegawa, Y., Jericha, E., Konrad, G., Sponar, S., Villa, M., & Zawisky, M. (2016). Current projects at the Atominstitut. Symposium “Future Possible Use of Neutron and Synchrotron Sources,” Graz, Austria. http://hdl.handle.net/20.500.12708/132867 ( reposiTUm)
Hasegawa, Y. (2016). Three resources for recent neutron optical investigations. JQI Workshop (2016), Maryland, USA, Non-EU. http://hdl.handle.net/20.500.12708/132882 ( reposiTUm)
Hasegawa, Y. (2015). Error-disturbance uncertainty relations à la physical and information-theoretical approaches tested with neutrons. 6th Nagoya Winter Workshop on Reality and Measurement in Algebraic Quantum Theory, Nagoya, Japan, Non-EU. http://hdl.handle.net/20.500.12708/131859 ( reposiTUm)
Hasegawa, Y. (2015). Weak-values and quantum Cheshire-cat revealed by matter-wave interferometer experiments. International Workshop on Weak Value and Weak Measurement, Tokyo, Japan, Non-EU. http://hdl.handle.net/20.500.12708/131860 ( reposiTUm)
Hasegawa, Y. (2015). Weak values in double-slit experiments with neutrons. Seminar, Ecole Centrale Paris, EU. http://hdl.handle.net/20.500.12708/131861 ( reposiTUm)
Hasegawa, Y. (2015). Foundation of quantum mechanics explored with neutrons. Seminar, Ecole Centrale Paris, EU. http://hdl.handle.net/20.500.12708/131862 ( reposiTUm)
Hasegawa, Y. (2015). Foundation of quantum mechanics explored with neutrons. Seminar, Ecole Centrale Paris, EU. http://hdl.handle.net/20.500.12708/131864 ( reposiTUm)
Hasegawa, Y. (2015). Foundation of quantum mechanics explored with neutrons. Seminar, Ecole Centrale Paris, EU. http://hdl.handle.net/20.500.12708/131863 ( reposiTUm)
Hasegawa, Y. (2015). Weak values in neutron interferometer experiment. Seminar, Ecole Centrale Paris, EU. http://hdl.handle.net/20.500.12708/132040 ( reposiTUm)
Hasegawa, Y. (2014). Fundamental phenomena in quantum mechanics revealed by neutron optical experiments. 5rd Nagoya Winter Workshop on Quantum Information, Measurement, and Quantum Foundations-2014, Nagoya, Japan, Non-EU. http://hdl.handle.net/20.500.12708/131164 ( reposiTUm)
Hasegawa, Y. (2014). Neutron optical studies of fundamental phenomena in quantum mechanics. Seminar, Ecole Centrale Paris, EU. http://hdl.handle.net/20.500.12708/131165 ( reposiTUm)
Hasegawa, Y. (2014). Weak values and quantum Cheshire-Cat in neutron optical experiments. Nanoscience and quantum physics special seminar-2014, Tokyo, Japan, Non-EU. http://hdl.handle.net/20.500.12708/131166 ( reposiTUm)
Hasegawa, Y. (2014). Counter-intuitive phenomena in quantum mechanics studied with neutrons. QIT 31, Sendai, Japan, Non-EU. http://hdl.handle.net/20.500.12708/131506 ( reposiTUm)
Hasegawa, Y. (2014). Die seltsame Welt der Quantenmechanik: zum Problem der Ergänzung und Erneuerung der Heisenbergsche Unschärferelation und der Stand der gegenwärtigen experimentellen Quantenphysik. Seminar, Ecole Centrale Paris, EU. http://hdl.handle.net/20.500.12708/131508 ( reposiTUm)
Hasegawa, Y. (2014). Weak values of neutrons in double-slit experiments. Kick-off Meeting of the integrated science project, Tokyo, Japan, Non-EU. http://hdl.handle.net/20.500.12708/131507 ( reposiTUm)
Hasegawa, Y. (2014). Fundamental phenomena in quantum mechanics studied with neutrons. Discussion Meeting on Quantum Measurements, Bangalore, India, Non-EU. http://hdl.handle.net/20.500.12708/131505 ( reposiTUm)
Hasegawa, Y. (2014). Quantum Cheshire-cat and weak values investigated with netron’s matter waves. Quantum theory: problems to advances, Vaxjo, Sweden, EU. http://hdl.handle.net/20.500.12708/131221 ( reposiTUm)
Sponar, S., Denkmayr, T., Erhart, J., Geppert, H., Lemmel, H., Matzkin, A., Sulyok, G., Ozawa, M., & Hasegawa, Y. (2014). Neutron optical Measurements studying Quantum Mechanics. GRANIT 2014-Workshop, Les Houches, France, EU. http://hdl.handle.net/20.500.12708/131145 ( reposiTUm)
Denkmayr, T., Geppert, H., Sulyok, G., Demirel, B., Erhart, J., Sponar, S., & Hasegawa, Y. (2014). Quantum Cheshire-Cat and uncertainty relation studied with neutrons. Quantum [Un]Speakables II: 50 Years of Bell’s Theorem, Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/131222 ( reposiTUm)
Hasegawa, Y. (2013). Neutron optical studies of fundamental phenomena of quantum mechanics. Symposium “Research at European Neutron and Synchrotron facilities,” Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/130693 ( reposiTUm)
Hasegawa, Y. (2013). Beyond Heisenberg’s uncertainty principle: error-disturbance uncertainty relation studied in neutron’s successive spin-measurements. Physics Colloquium, Houston, Texas/ USA, Non-EU. http://hdl.handle.net/20.500.12708/130695 ( reposiTUm)
Hasegawa, Y. (2013). Uncertainty relation studied in neutron’s successive spin-measurements. Physics Colloquium, Houston, Texas/ USA, Non-EU. http://hdl.handle.net/20.500.12708/130694 ( reposiTUm)
Hasegawa, Y. (2013). Neutron optical studies of fundamental phenomena of quantum mechanics. EmQM13, Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/130692 ( reposiTUm)
Sponar, S., Sulyok, G., Erhart, J., Badurek, G., Ozawa, M., & Hasegawa, Y. (2013). Violation of Heisenberg’s Error-Disturbance Uncertainty Relation in Neutron Spin Measurements. International Conference on Neutron Scattering ICNS2013, Edinburgh, EU. http://hdl.handle.net/20.500.12708/130599 ( reposiTUm)
Hasegawa, Y. (2013). Optical studies of intra-partite entanglement in neutrons. Fourth Nagoya Winter Workshop on Quantum Information 2013, Nagoya, Japan, Non-EU. http://hdl.handle.net/20.500.12708/130691 ( reposiTUm)
Sponar, S., Sulyok, G., Erhart, J., Klepp, J., Schmitzer, C., Geppert, H., Durstberger-Rennhofer, K., Badurek, G., Ozawa, M., & Hasegawa, Y. (2012). Foundations of Quantum Mechanics explored with Neutrons. Quantum Africa 2, Mont aux Sources Hotel, Northern Drakensberg, Südafrika, Non-EU. http://hdl.handle.net/20.500.12708/130170 ( reposiTUm)
Hasegawa, Y. (2012). Neutron optical tests of fundamental issues in quantum mechanics. 3rd Nagoya Winter Workshop on Quantum Information, Measurement and Quantum Foundations, Nagoya, Japan, Non-EU. http://hdl.handle.net/20.500.12708/129933 ( reposiTUm)
Hasegawa, Y. (2012). Neutron optical tests of fundamental issues in quantum mechanics. KEK Workshop, Recent Issues and Prospects on Quantum Theory, Tsukuba, Japan, Non-EU. http://hdl.handle.net/20.500.12708/129934 ( reposiTUm)
Hasegawa, Y. (2012). Uncertain relation studied in neutron’s successive spin-measurements. COST-Meeting, Msida, Malta, EU. http://hdl.handle.net/20.500.12708/129936 ( reposiTUm)
Hasegawa, Y. (2012). Neutron optical tests of fundamental issues in quantum mechanics. 7th Conference on theory of quantum computation, communication and cryptography (TQC), Tokyo, Japan, Non-EU. http://hdl.handle.net/20.500.12708/129938 ( reposiTUm)
Hasegawa, Y. (2012). Uncertainty relation studied in neutron’s successive spin-measurements. Physics Seminar, Osaka, Japan, Non-EU. http://hdl.handle.net/20.500.12708/129960 ( reposiTUm)
Hasegawa, Y. (2012). Uncertainty relation studied in neutron’s successive spin-measurements. COE Seminar, Inst. of Technology, Tokyo (Japan), Austria. http://hdl.handle.net/20.500.12708/129961 ( reposiTUm)
Hasegawa, Y. (2012). Uncertainty relation studied in neutron’s successive spin-measurements. Innovation and NISHINA-Center Seminar, Saitama, Japan, Non-EU. http://hdl.handle.net/20.500.12708/129958 ( reposiTUm)
Hasegawa, Y. (2012). Uncertainty relation studied in neutron’s successive spin-measurements. J-PARC Seminar, Tokai, Japan, Non-EU. http://hdl.handle.net/20.500.12708/129957 ( reposiTUm)
Hasegawa, Y. (2012). Uncertainty relation studied in neutron’s successive spin-measurements. COE Seminar, Inst. of Technology, Tokyo (Japan), Austria. http://hdl.handle.net/20.500.12708/129959 ( reposiTUm)
Hasegawa, Y. (2012). Error-disturbance uncertainty relation studied in successive spin-measurements. Quantum Theory: Reconsideration of Foundations-6 (QTRF-6), Växjö, Sweden, EU. http://hdl.handle.net/20.500.12708/129941 ( reposiTUm)
Hasegawa, Y. (2012). Error-disturbance uncertainty relation studied in successive spin-measurements. QCMC 2012 Intl. Conference on Quantum Communication, Measurement and Computing, Wien, Austria. http://hdl.handle.net/20.500.12708/129942 ( reposiTUm)
Erdösi, D., & Hasegawa, Y. (2012). Violation of a Bell-like inequality. QCMC 2012 Intl. Conference on Quantum Communication, Measurement and Computing, Wien, Austria. http://hdl.handle.net/20.500.12708/129943 ( reposiTUm)
Sponar, S., Klepp, J., Schmitzer, C., Bartosik, H., Durstberger-Rennhofer, K., Rauch, H., & Hasegawa, Y. (2012). Tests of alternative quantum theories with neutrons. QCMC 2012 Intl. Conference on Quantum Communication, Measurement and Computing, Wien, Austria. http://hdl.handle.net/20.500.12708/129956 ( reposiTUm)
Hasegawa, Y. (2012). Uncertainty relation studied in neutron’s successive spin-measurements. Physics Seminar, Osaka, Japan, Non-EU. http://hdl.handle.net/20.500.12708/129962 ( reposiTUm)
Hasegawa, Y. (2012). Violation of Heisenberg’s uncertainty relation found with neutrons. UNVJ (United Nation in Vienna, Japanese community) Seminar, Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/129963 ( reposiTUm)
Sponar, S., Lemmel, H., Rauch, H., & Hasegawa, Y. (2012). Foundations of Quantum Mechanics explored with Neutrons. Science & Scientists @ ESS 2012, Berlin, EU. http://hdl.handle.net/20.500.12708/129647 ( reposiTUm)
Sponar, S., Klepp, J., Loidl, R., Schmitzer, C., Bartosik, H., Durstberger-Rennhofer, K., Rauch, H., & Hasegawa, Y. (2012). Alternative Theories of Quantum Mechanics studied with Neutrons. QCMC 2012, Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/129740 ( reposiTUm)
Erhart, J., Sponar, S., Sulyok, G., Badurek, G., Ozawa, M., & Hasegawa, Y. (2011). Experimental confirmation of a universally valid uncertainty relation for error and disturbance in spin-measurements. NESY Winterschool, Planneralm, Österreich, Austria. http://hdl.handle.net/20.500.12708/128911 ( reposiTUm)
Erhart, J., Sponar, S., Sulyok, G., Badurek, G., Ozawa, M., & Hasegawa, Y. (2011). A universally valid uncertainty relation demonstrated by successive spin-measurements. 2011 Einsteins in the City, New York, USA, Non-EU. http://hdl.handle.net/20.500.12708/128910 ( reposiTUm)
Durstberger-Rennhofer, K., Schmitzer, C., Bartosik, H., Klepp, J., Sponar, S., Badurek, G., & Hasegawa, Y. (2011). Falsification of Leggett’s model using neutron matter waves. Jahrestagung der ÖPG, Lausanne, Switzerland, Non-EU. http://hdl.handle.net/20.500.12708/128956 ( reposiTUm)
Sponar, S., Klepp, J., Loidl, R., Filipp, S., Erdösi, D., Durstberger-Rennhofer, K., Bertlmann, R. A., Badurek, G., Rauch, H., & Hasegawa, Y. (2011). Multi-Entanglement in Neutron Interferometry Experiments. 5th European Conference on Neutron Scattering, Prague, CZ, EU. http://hdl.handle.net/20.500.12708/128987 ( reposiTUm)
Lemmel, H., Hasegawa, Y., & Rauch, H. (2011). Entanglement features in interferometer and spin-echo experiments. 5th European Conference on Neutron Scattering, Prague, CZ, EU. http://hdl.handle.net/20.500.12708/128989 ( reposiTUm)
Hasegawa, Y., Durstberger-Rennhofer, K., Erdösi, D., Erhardt, J., Klepp, J., Lemmel, H., Sponar, S., Sulyok, G., & Rauch, H. (2011). Foundation of Quantum Mechanics Explored with Neutrons. 5th European Conference on Neutron Scattering, Prague, CZ, EU. http://hdl.handle.net/20.500.12708/128990 ( reposiTUm)
Sponar, S., Klepp, J., Schmitzer, C., Bartosik, H., Both, M., Geppert, H., Durstberger-Rennhofer, K., Badurek, G., & Hasegawa, Y. (2011). Entanglement in Neutron Poarimetric Experiments. ÖPG Jahrestagung 2011, Lausanne, Switzerland, Austria. http://hdl.handle.net/20.500.12708/129649 ( reposiTUm)
Erhart, J., Sponar, S., Sulyok, G., Badurek, G., Ozawa, M., & Hasegawa, Y. (2010). Experimental confirmation of a universally valid uncertainty relation for error and disturbance in spin-measurements. 14. Deutsche Physikerinnentagung 2010, München, Germany, EU. http://hdl.handle.net/20.500.12708/128912 ( reposiTUm)
Erhart, J., Sponar, S., Sulyok, G., Badurek, G., Ozawa, M., & Hasegawa, Y. (2010). Experimental confirmation of a universally valid uncertainty relation for error and disturbance in spin-measurements. 60. Jahrestagung der Österreichischen Physikalischen Gesellschaft (ÖPG), Salzburg, Austria. http://hdl.handle.net/20.500.12708/128913 ( reposiTUm)
Durstberger-Rennhofer, K., & Hasegawa, Y. (2010). Quantum physics with neutrons - theory & experiment. Workshop in honor of Reinhold Bertlmann, Puchberg am Schneeberg, Austria. http://hdl.handle.net/20.500.12708/128426 ( reposiTUm)
Hasegawa, Y. (2010). Quantum Mechanical Phenomena Studied with Neutrons. Nagoya Winter Workshop on Quantum Information, Measurement, and Quantum Foundations, Nagoya University, Nagoya, Non-EU. http://hdl.handle.net/20.500.12708/128430 ( reposiTUm)
Durstberger-Rennhofer, K., Sulyok, G., Hasegawa, Y., & Rauch, H. (2010). Entanglement and decoherence within neutron interferometry. Frontiers in Matter Wave Optics, Kreta, EU. http://hdl.handle.net/20.500.12708/128424 ( reposiTUm)
Hasegawa, Y. (2010). Quantum optical phenomena studied with neutrons. NII Seminar, National Institute of informatics, Tokyo, Non-EU. http://hdl.handle.net/20.500.12708/128436 ( reposiTUm)
Hasegawa, Y. (2010). Quantum mechanics studied with polarized neutrons. Polarized Neutrons in Condensed Matter Investigations, Delft, Netherlands, EU. http://hdl.handle.net/20.500.12708/128434 ( reposiTUm)
Hasegawa, Y. (2010). Quantum mechanics studied with polarized neutrons. PRESTO Workshop, Tokyo, Japan, Non-EU. http://hdl.handle.net/20.500.12708/128435 ( reposiTUm)
Hasegawa, Y. (2010). Quantum contextuality studied with neutrons --- Kochen-Specker theorem. Neutron Optics, NOP 2010, Alpe d’Huez, France, EU. http://hdl.handle.net/20.500.12708/128432 ( reposiTUm)
Hasegawa, Y., & Lemmel, H. (2010). High precision neutron interferometer setup S18b. ILL Vision 2010, Grenoble, Frankreich, EU. http://hdl.handle.net/20.500.12708/128431 ( reposiTUm)
Hasegawa, Y. (2010). Optical studies of entanglements in a single-particle system. FOMO 2010, Kreta, EU. http://hdl.handle.net/20.500.12708/128433 ( reposiTUm)
Hasegawa, Y. (2009). Quantum Optical Phenomena Studied with Neutrons". Neutrino, Neutron, Nuclear, Medical and Muon Physics at ESS, Lund, EU. http://hdl.handle.net/20.500.12708/127936 ( reposiTUm)
Hasegawa, Y. (2009). Wave optics with neutrons. Special cooperative program Meeting `Fundamental physics and small angle scattering using neutrons´, Tokai, Non-EU. http://hdl.handle.net/20.500.12708/127935 ( reposiTUm)
Hasegawa, Y., Badurek, G., Klepp, J., Loidl, R., Sponar, S., & Rauch, H. (2009). Neutron as a quantum system: exploring multi-entanglement in a single-neutron system. 3rd Vienna symposium on the Foundation of Modern Physics, Wien, Austria. http://hdl.handle.net/20.500.12708/127937 ( reposiTUm)
Klepp, J., Sponar, S., Bartosik, H., Filipp, S., Rauch, H., Schmitzer, C., & Hasegawa, Y. (2009). Quantum eraser and complementarity in neutron optics. 3rd Vienna symposium on the Foundation of Modern Physics, Wien, Austria. http://hdl.handle.net/20.500.12708/127938 ( reposiTUm)
Sponar, S., Klepp, J., Loidl, R., Filipp, S., Durstberger-Rennhofer, K., Bertlmann, R. A., Hasegawa, Y., & Rauch, H. (2009). Berry phase in entangled system: a single-neutron interferometer experiment. 3rd Vienna symposium on the Foundation of Modern Physics, Wien, Austria. http://hdl.handle.net/20.500.12708/127939 ( reposiTUm)
Sulyok, G., Rauch, H., Hasegawa, Y., Klepp, J., & Lemmel, H. (2009). Decoherence in the neutron interferometer. 3rd Vienna symposium on the Foundation of Modern Physics, Wien, Austria. http://hdl.handle.net/20.500.12708/127940 ( reposiTUm)
Hasegawa, Y. (2009). Quantum contextuality and Kochen-Specker phenomena studied by neutrons. ILL College 3 Seminar, Grenoble, EU. http://hdl.handle.net/20.500.12708/127941 ( reposiTUm)
Sponar, S., Klepp, J., Fillip, S., Loidl, R., Durstberger-Rennhofer, K., Bertlmann, R. A., Hasegawa, Y., Badurek, G., & Rauch, H. (2009). Berry Phase in Entangled Systems: A Single-Neutron Interferometer Experiment. 16. Meeting Nonlocal Seminar, Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/129648 ( reposiTUm)
Hasegawa, Y., Badurek, G., Filipp, S., Klepp, J., Loidl, R., Sponar, S., & Rauch, H. (2008). Multi-entanglement in a single-neutron system. 4th American Conference on Neutron Scattering (ACNS2008), Santa Fe, USA, Non-EU. http://hdl.handle.net/20.500.12708/127339 ( reposiTUm)
Hasegawa, Y., Filipp, S., & Rauch, H. (2008). Intensity correlations with x-rays. Joint Workshop on Tailoring neutron beams at small and medium sized neutron sources & Neutronanti-bunching, Atominstitut Wien, Austria. http://hdl.handle.net/20.500.12708/127337 ( reposiTUm)
Filipp, S., Hasegawa, Y., & Rauch, H. (2008). Doubts that it works. Joint Workshop on Tailoring neutron beams at small and medium sized neutron sources & Neutronanti-bunching, Atominstitut Wien, Austria. http://hdl.handle.net/20.500.12708/127338 ( reposiTUm)
Loidl, R., Klepp, J., Sponar, S., Filipp, S., Badurek, G., Rauch, H., & Hasegawa, Y. (2007). Violation of Mermnin’s inequality for GHZ states in neutron interferometry. Fachausschusstagung, ÖPG, Kern- und Teilchenphysik, Seggauberg (Österreich), Austria. http://hdl.handle.net/20.500.12708/126511 ( reposiTUm)
Sponar, S., Klepp, J., Filipp, S., Badurek, G., Rauch, H., & Hasegawa, Y. (2007). Coherent manipulationfor multi-entanglement of neutrons. Fachausschusstagung, ÖPG, Kern- und Teilchenphysik, Seggauberg (Österreich), Austria. http://hdl.handle.net/20.500.12708/126510 ( reposiTUm)
Klepp, J., Sponar, S., Badurek, G., Filipp, S., Jericha, E., Leitner, M., & Hasegawa, Y. (2007). Observation of mixed state phase using neutron polarimetry. Fachausschusstagung, ÖPG, Kern- und Teilchenphysik, Seggauberg (Österreich), Austria. http://hdl.handle.net/20.500.12708/126512 ( reposiTUm)
Rauch, H., Filipp, S., & Hasegawa, Y. (2007). Neutron Quantum Optics. 4th European Conference on Neutron Scattering, Lund, Schweden, EU. http://hdl.handle.net/20.500.12708/126773 ( reposiTUm)
Filipp, S., Hasegawa, Y., & Rauch, H. (2007). Geometric Phases in Neutron Optics. SFB-ADLIS Workshop 2007, Schloss Goldegg, Salzburg, Austria. http://hdl.handle.net/20.500.12708/126492 ( reposiTUm)
Filipp, S., Hasegawa, Y., & Rauch, H. (2006). Phases and Entanglement in Neutron Interference Experiments. Conf. on Quantum Mechanics: From Fundamental Problems to Applications, Bertinoro (Italy), EU. http://hdl.handle.net/20.500.12708/126467 ( reposiTUm)
Klepp, J., Sponar, S., Hasegawa, Y., Filipp, S., Lettner, M., Jericha, E., & Badurek, G. (2006). Observation of geometric mixed state phase using neutron polarimetry. Quantum Mechanics: From Fundamental Problems to Applications, Bertinoro (Italy), EU. http://hdl.handle.net/20.500.12708/126272 ( reposiTUm)
Loidl, R., Badurek, G., Baron, M., Dubus, F., Filipp, S., Hasegawa, Y., Klepp, J., Jericha, E., Lemmel, H., Trinker, M., Zawisky, M., & Rauch, H. (2006). Interferometer and USANS Instrument S18. The ILL Millenium Symposium, Grenoble (France), EU. http://hdl.handle.net/20.500.12708/126173 ( reposiTUm)
Hasegawa, Y., Badurek, G., Baron, M., Filipp, S., Klepp, J., Loidl, R., & Rauch, H. (2006). Spin-Path Entanglement in Neutron Interferometer Experiments. The ILL Millenium Symposium, Grenoble (France), EU. http://hdl.handle.net/20.500.12708/126168 ( reposiTUm)
Hasegawa, Y., & Rauch, H. (2006). Spin-Path Entanglement in Neutron Interferometer Experiments. Int. Conf. Theoretical and Experimental Foundations of recent Quantum Technologies, Durban (South Africa), Non-EU. http://hdl.handle.net/20.500.12708/126175 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., & Rauch, H. (2006). Noncyclic geometric phase due to spatial evolution in a neutron. SFB Quantum Control and Measurement Meeting, Innsbruck (Österreich), Austria. http://hdl.handle.net/20.500.12708/125947 ( reposiTUm)
Sponar, S., Klepp, J., Hasegawa, Y., Jericha, E., & Badurek, G. (2006). Non-cyclic geometric phases in mixed state neutron polarimetry. 13th European Workshop on Quantum Optics, Wien, Austria. http://hdl.handle.net/20.500.12708/126347 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Filipp, S., Klepp, J., & Rauch, H. (2006). Quantum contextuality induced by spin-path entanglement in single-neutrons. 13th European Workshop on Quantum Optics, Wien, Austria. http://hdl.handle.net/20.500.12708/126348 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Baron, M., & Rauch, H. (2005). Quantum contextuality in neutron interferometry. Hearing Spezialforschungsbereich “Control and Measurement of Coherent Quantum Systems,” Innsbruck (Österreich), Austria. http://hdl.handle.net/20.500.12708/125187 ( reposiTUm)
Baron, M., Loidl, R., Badurek, G., Dubus, F., Filipp, S., Hasegawa, Y., Jericha, E., Lemmel, H., Trinker, M., Zawisky, M., & Rauch, H. (2005). The Interferometer and USANS Instrument S18 at the ILL, Grenoble, France. Hearing Spezialforschungsbereich “Control and Measurement of Coherent Quantum Systems,” Innsbruck (Österreich), Austria. http://hdl.handle.net/20.500.12708/125189 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., Sjöqvist, E., Tong, D. M., & Rauch, H. (2005). Quantum Geometric Phase: Off-diagonal Extensions, Neutron Interferometry and Decoherence. Obergurgl Meeting - 2005, Obergurgl (Österreich), Austria. http://hdl.handle.net/20.500.12708/125482 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., & Rauch, H. (2005). Recent experiments on geometric phase measurements with neutrons. 55. Jahrestagung der Österreichischen Physikalischen Gesellschaft, Wien, Austria. http://hdl.handle.net/20.500.12708/125485 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., & Rauch, H. (2005). Spatial Geometric Phase in Neutron Interferometry and Decoherence Properties. Workshop on Noise and Instabilities in Quantum Mechanics, Trieste (Italy), Austria. http://hdl.handle.net/20.500.12708/125479 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., Sjöqvist, E., Tong, D. M., & Rauch, H. (2005). Quantum Geometric Phase: Off-diagonal Extensions, Neutron Interferometry and Decoherence. SFB - Quantum Control and Measurement - Hearing, Innsbruck (Österreich), Austria. http://hdl.handle.net/20.500.12708/125483 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., & Rauch, H. (2005). Spatial Geometric Phase in Neutron Interferometry. Non-local Seminar, Bratislav (Slowakei), Austria. http://hdl.handle.net/20.500.12708/125484 ( reposiTUm)
Sponar, S., Klepp, J., Hasegawa, Y., Jericha, E., & Badurek, G. (2005). Noncyclic mixed state phase in SU(2) neutron polarimetric experiments. 55. Jahrestagung der Österreichischen Physikalischen Gesellschaft, Wien, Austria. http://hdl.handle.net/20.500.12708/125525 ( reposiTUm)
Filipp, S., Hasegawa, Y., & Rauch, H. (2005). Stability of the Geometric Phase - Potential Experimental Realization. EDM-Collaboration Meeting, ILL Grenoble (France), Austria. http://hdl.handle.net/20.500.12708/125487 ( reposiTUm)
Filipp, S., Hasegawa, Y., Loidl, R., Sjöqvist, E., & Rauch, H. (2005). Quantum Geometric Phase: Off-diagonal Extensions, Neutron Interferometry and Decoherence. Einsteins in the City - Junior Research Conference, City College of New York, New York (USA), Austria. http://hdl.handle.net/20.500.12708/125488 ( reposiTUm)
Rauch, H., Baron, M., Hasegawa, Y., Lemmel, H., & Loidl, R. (2005). Hidden observables in quantum neutron interferometry. Int. Conf. Neutron Scattering - ICNS2005, Sydney (Australia), Non-EU. http://hdl.handle.net/20.500.12708/125631 ( reposiTUm)
Hasegawa, Y., Loidl, R., Baron, M., Badurek, G., & Rauch, H. (2005). Quantum contextuality in neutron interferometer experiments. Int. Conf. Neutron Scattering - ICNS2005, Sydney (Australia), Non-EU. http://hdl.handle.net/20.500.12708/125632 ( reposiTUm)
Hasegawa, Y., Loidl, R., Filipp, S., Klepp, J., & Rauch, H. (2005). Quantum state tomography of neutrons. ÖPG Jahrestagung 2005, Wien, Austria. http://hdl.handle.net/20.500.12708/125627 ( reposiTUm)
Klepp, J., Sponar, S., Hasegawa, Y., Jericha, E., & Badurek, G. (2004). Noncyclic mixed state phase in SU(2) neutron polarimetry. 54. Jahrestagung der Österreichischen Physikalischen Gesellschaft, Linz, Austria. http://hdl.handle.net/20.500.12708/125181 ( reposiTUm)
Hasegawa, Y. (2004). Quantum Contextuality in Neutron Interferometer Experiments. COE Seminar, Inst. of Technology, Tokyo (Japan), Austria. http://hdl.handle.net/20.500.12708/125057 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Baron, M., & Rauch, H. (2004). Quantum Contextuality in Neutron Interferometry. New Frontiers in Quantum Theory and Measurement, Schloss Reisensburg, Günzburg (Deutschland), Austria. http://hdl.handle.net/20.500.12708/125060 ( reposiTUm)
Hasegawa, Y. (2004). Quantum Contextuality in Single-Neutron Interferoemter Experiments. Precision Measurements with slow neutrons, NIST Gaithersburg, MD (USA), Austria. http://hdl.handle.net/20.500.12708/125059 ( reposiTUm)
Hasegawa, Y. (2004). Quantum Contextuality in Neutron Interferometer Experiments. Seminar am Hahn-Meitner Institut, Berlin (Deutschland), Austria. http://hdl.handle.net/20.500.12708/125058 ( reposiTUm)
Filipp, S., Hasegawa, Y., & Rauch, H. (2004). Spatial non-cyclic geometric phase in neutron interferometry. Int. Conf. Precision Measurements with Slow Neutrons, NIST, Gaithersburg, MD (USA), Austria. http://hdl.handle.net/20.500.12708/125136 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Baron, M., & Rauch, H. (2004). Violation of a Bell-type inequality in Single-Neutron Interferometry. Symposium on Quantum Information Processing 2004, Hitotsubashi Hall, Tokyo (Japan), Austria. http://hdl.handle.net/20.500.12708/125061 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Baron, M., & Rauch, H. (2004). Quantum Contextuality in Neutron Interferometry: violation of a Bell.like Inequality with Single-Neutrons. 333th Int. W. und E. Heraeus Seminar on New Frontiers in Quantum Theory and Measurement, Schloss Reisensburg, Günzburg (Deutschland), Austria. http://hdl.handle.net/20.500.12708/125141 ( reposiTUm)
Hasegawa, Y., Filipp, S., & Rauch, H. (2004). Non-cyclic Geometric Phase due to Spatial Evolution in a Neutron Interferometer. Fachausschusstagung, ÖPG, Kern- und Teilchenphysik, Seggauberg (Österreich), Austria. http://hdl.handle.net/20.500.12708/125143 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Baron, M., & Rauch, H. (2004). Violation of Bell-type inequality in single-neutron interferometry: quantum contextuality. Int. Conf. on Neutron Optics , NOP 2004, Tokyo (Japan), Austria. http://hdl.handle.net/20.500.12708/126345 ( reposiTUm)
Jericha, E., Badurek, G., Baron, M., Hasegawa, Y., Jäkel, M. R., Klepp, J., Rofner, A., Sponar, S., Trinker, M., Villa, M., & Rauch, H. (2004). Neutron Optics Experiments at the TRIGA Mark II reactor of the Atominstitut Wien. 2nd World TRIGA Users Conf., Atominstitut (Wien), Austria. http://hdl.handle.net/20.500.12708/125514 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Baron, M., & Rauch, H. (2003). Violation of Bell-Type Inequality in Single-Neutron Interferometry. Obergurgl Meeting 2003, Obergurgl, Tirol, Austria. http://hdl.handle.net/20.500.12708/124625 ( reposiTUm)
Hasegawa, Y. (2003). Quantum Contextuality in Neutron Interferometer Experiments. Seminarvortrag - Inst. of Physical and Chemical Research, Riken (Japan), Austria. http://hdl.handle.net/20.500.12708/124626 ( reposiTUm)
Hasegawa, Y. (2003). Stopped Light. SFB Meeting, Wien, Austria. http://hdl.handle.net/20.500.12708/124628 ( reposiTUm)
Hasegawa, Y. (2003). Violation of a Bell-like Inequality in SIngle-Neutron Interferometer Experiments: Quantum Contextuality. Seminarvortrag am Atominstitut, Wien, Austria. http://hdl.handle.net/20.500.12708/124631 ( reposiTUm)
Hasegawa, Y. (2003). Violation of a Bell-like Inequality in Single-Neutron Interferometer Experiments. FAKT 2003 (Österr. Physikal. Gesellschaft), Strobl / Wolfgangsee, Austria. http://hdl.handle.net/20.500.12708/124630 ( reposiTUm)
Hasegawa, Y. (2003). Violation of Bell-Type Inequality in Single-Neutron Interferometry. 10th. Central-European Workshop on Quantum Optics, Rostock-Warnemünde (Deutschland), Austria. http://hdl.handle.net/20.500.12708/124627 ( reposiTUm)
Hasegawa, Y. (2003). Violation of Bell-like Inequality with neutrons: quantum contextuality. Mysteries, Puzzles and Paradoxes in Quantum Mechanics 2003, Gargnano, Gardasee (Italy), Austria. http://hdl.handle.net/20.500.12708/124629 ( reposiTUm)
Filipp, S., Hasegawa, Y., & Rauch, H. (2003). Split-beam experiment to test the non-cyclic spatial geometric phase. Seminarvortrag am Atominstitut, Wien, Austria. http://hdl.handle.net/20.500.12708/124634 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Baron, M., & Rauch, H. (2003). Violation of Bell-like inequality in single-neutron interferometry. Fachausschusstagung ÖPG, Physik an Neutronen u.Synchrotron...., Leoben (Österreich), Austria. http://hdl.handle.net/20.500.12708/124684 ( reposiTUm)
Hasegawa, Y. (2002). Violation of Bell-Type Inequality in Single-Neutron Interferometry. Waseda Int. Symp. on Fundamental Physics, Waseda University, Tokyo (Japan), Austria. http://hdl.handle.net/20.500.12708/123887 ( reposiTUm)
Hasegawa, Y., Loidl, R., Badurek, G., Baron, M., & Rauch, H. (2002). Observation of Off-Diagonal Geometric Phases in Polarized-Neutron-Interferometer Experiments. Waseda Int. Symp. on Fundamental Physics, Waseda University, Tokyo (Japan), Austria. http://hdl.handle.net/20.500.12708/123888 ( reposiTUm)
Hasegawa, Y., Rauch, H., Badurek, G., Baron, M., & Loidl, R. (2002). Measurement of Topological Neutron Quantum Phases. Fachausschusstagung ÖPG, Quantenelektronik, Elektrodynamik und Optik, Leoben (Österreich), Austria. http://hdl.handle.net/20.500.12708/123800 ( reposiTUm)

Preprints

Demirel, B., Sponar, S., Sulyok, G., Ozawa, M., & Hasegawa, Y. (2015). Residual error-disturbance uncertainties in successive spin ½ measurements tested in matter-wave optics. arXiv. https://doi.org/10.48550/arXiv.1511.03462 ( reposiTUm)

Hochschulschriften

Hasegawa, Y. (2004). Quantum optical experiments with neutrons [Professorial Dissertation, Technische Universität Wien]. reposiTUm. http://hdl.handle.net/20.500.12708/185864 ( reposiTUm)