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)
Fischer, H., Käding, C., Lemmel, H., Sponar, S., & Pitschmann, M. (2024). Search for Dark Energy with Neutron Interferometry. Progress of Theoretical and Experimental Physics, 2024(2), Article 023E02. https://doi.org/10.1093/ptep/ptae014 ( reposiTUm)
Kreuzgruber, E., Wagner, R., Geerits, N., Lemmel, H., & Sponar, S. (2024). Violation of a Leggett-Garg Inequality Using Ideal Negative Measurements in Neutron Interferometry. Physical Review Letters, 132(26), 1–6. https://doi.org/10.1103/PhysRevLett.132.260201 ( reposiTUm)
Vu, P. N. H., Radlinski, A. P., Blach, T., Schweins, R., Lemmel, H., Daniels, J., & Regenauer-Lieb, K. (2024). Revealing nanoscale sorption mechanisms of gases in a highly porous silica aerogel. Journal of Applied Crystallography, 57(5), 1311–1322. https://doi.org/10.1107/S1600576724006794 ( reposiTUm)
Magerl, A., Lemmel, H., Appel, M., Matthias Weißer, Ulrich Kretzer, & Zobel, M. (2024). The promise of GaAs 200 in small-angle neutron scattering for higher resolution. Journal of Applied Crystallography, 57(5), 1282–1287. https://doi.org/10.1107/S1600576724007246 ( reposiTUm)
Geerits, N., Lemmel, H., Berger, A.-S., & Sponar, S. (2023). Phase vortex lattices in neutron interferometry. Communications Physics, 6(1), Article 209. https://doi.org/10.1038/s42005-023-01318-6 ( 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)
Lemmel, H., Geerits, N., Danner, A., Hofmann, H. F., & Sponar, S. (2022). Quantifying the presence of a neutron in the paths of an interferometer. Physical Review Research (PRResearch), 4(2), Article 023075. https://doi.org/10.1103/PhysRevResearch.4.023075 ( reposiTUm)
Lemmel, H., Jentschel, M., Abele, H., Lafont, F., Guerard, B., Sasso, C. P., Mana, G., & Massa, E. (2022). Neutron interference from a split-crystal interferometer. Journal of Applied Crystallography, 55(4), 870–875. https://doi.org/10.1107/S1600576722006082 ( reposiTUm)
Belyaeva, I. A., Klepp, J., Lemmel, H., & Shamonin, M. (2021). Feasibility of Probing the Filler Restructuring in Magnetoactive Elastomers by Ultra-Small-Angle Neutron Scattering. Applied Sciences, 11(10), 4470. https://doi.org/10.3390/app11104470 ( reposiTUm)
Wagner, R., Kersten, W., Danner, A., Lemmel, H., Pan, A. K., & Sponar, S. (2021). Direct experimental test of commutation relation via imaginary weak value. Physical Review Research, 3(023243). https://doi.org/10.1103/physrevresearch.3.023243 ( 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)
Abele, H., Lemmel, H., & Jenke, T. (2019). Happy birthday, ultracold neutron! Nature, 572(7768), 178–178. https://doi.org/10.1038/d41586-019-02375-0 ( 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., 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)
Tapasztó, O., Tapasztó, L., Lemmel, H., Puchy, V., Dusza, J., Balázsi, C., & Balázsi, K. (2016). High orientation degree of graphene nanoplatelets in silicon nitride composites prepared by spark plasma sintering. Ceramics International, 42(1), 1002–1006. https://doi.org/10.1016/j.ceramint.2015.09.009 ( reposiTUm)
Potocar, T., Zawisky, M., Lemmel, H., Springer, J., & Suda, M. (2015). Neutron interferometric measurement and calculations of a phase shift induced by Laue transmission. Acta Crystallographica Section A: Foundations and Advances, 71(5), 534–541. https://doi.org/10.1107/s205327331501205x ( reposiTUm)
Lemmel, H., Brax, Ph., Ivanov, A. N., Jenke, T., Pignol, G., Pitschmann, M., Potocar, T., Wellenzohn, M., Zawisky, M., & Abele, H. (2015). Neutron interferometry constrains dark energy chameleon fields. Physics Letters B, 743, 310–314. https://doi.org/10.1016/j.physletb.2015.02.063 ( 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)
Lemmel, H. (2014). Das Quantengrinsen der Cheshire-Katze. Physik in Unserer Zeit, 45(6), 266–267. http://hdl.handle.net/20.500.12708/157453 ( reposiTUm)
Bahadur, J., Prakash, J., Sen, D., Mazumder, S., Sastry, P. U., Paul, B., Chakravartty, J. K., & Lemmel, H. (2014). A facile fabrication of a uniform and homogeneous CNT - TiO_2 composite: a microscopic and scattering investigation. RSC Advances, 4(26), 13231–13240. https://doi.org/10.1039/c4ra00619d ( reposiTUm)
Xia, F., Zhao, J., Etschmann, B. E., Brugger, J., Garvey, C. J., Rehm, C., Lemmel, H., Ilavsky, J., Han, Y.-S., & Pring, A. (2014). Characterization of porosity in sulfide ore minerals: A USANS/SANS study. American Mineralogist, 99(11–12), 2398–2404. https://doi.org/10.2138/am-2014-4845 ( 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)
Lakhotiya, H., Singh, R., Bahadur, J., Sen, D., Das, A., Mazumder, S., Paul, B., Sastry, P. U., & Lemmel, H. (2014). Micro-structural investigations of spray hydrolyzed TiO_2. Journal of Alloys and Compounds, 584, 101–107. https://doi.org/10.1016/j.jallcom.2013.08.195 ( reposiTUm)
Lemmel, H. (2014). Dispersion cancellation in a triple Laue interferometer. Journal of Optics, 16(10), 105704. https://doi.org/10.1088/2040-8978/16/10/105704 ( reposiTUm)
Tapasztó, O., Lemmel, H., Markó, M., Balázsi, K., Balázsi, C., & Tapasztó, L. (2014). The influence of sintering on the dispersion of carbon nanotubes in ceramic matrix composites. Chemical Physics Letters, 614, 148–150. https://doi.org/10.1016/j.cplett.2014.09.029 ( 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)
Lemmel, H. (2013). Influence of Bragg diffraction on perfect crystal neutron phase shifters and the exact solution of the two-beam case in the dynamical diffraction theory. Acta Crystallographica. Section A: Foundations of Crystallography, 69(5), 459–474. https://doi.org/10.1107/s0108767313014293 ( reposiTUm)
Cronenberg, G., Durstberger-Rennhofer, K., Geltenbort, P., Jenke, T., Lemmel, H., & Abele, H. (2012). Methods and application of gravity resonance sepctroscopy within the qBounce experiment. Journal of Physics: Conference Series, 340, 012045. https://doi.org/10.1088/1742-6596/340/1/012045 ( reposiTUm)
Abbas, S., Wagh, A. G., Lemmel, H., Potocar, T., & Rauch, H. (2012). High-precision determination of Si-neutron coherent scattering length with a dual non-dispersive sample. AIP Conference Proceedings. https://doi.org/10.1063/1.4710087 ( reposiTUm)
Sakurovs, R., He, L., Melnichenko, Y. B., Radlinski, A. P., Blach, T., Lemmel, H., & Mildner, D. F. R. (2012). Pore size distribution and accessible pore size distribution in bituminous coals. International Journal of Coal Geology, 100, 51–64. https://doi.org/10.1016/j.coal.2012.06.005 ( reposiTUm)
Fischer, H. E., Simonson, J. M., Neuefeind, J. C., Lemmel, H., Rauch, H., Zeidler, A., & Salmon, P. S. (2012). The bound coherent neutron scattering lengths of the oxygen isotopes. JOURNAL OF PHYSICS-CONDENSED MATTER, 24(50), 505105. https://doi.org/10.1088/0953-8984/24/50/505105 ( reposiTUm)
Sulyok, G., Lemmel, H., & Rauch, H. (2012). Neutrons in a time-dependent magnetic field: Photon exchange and decoherence modeling. Physical Review A, 85(033624). https://doi.org/10.1103/physreva.85.033624 ( reposiTUm)
Zeidler, A., Salmon, P. S., Fischer, H. E., Neuefeind, J. C., Simonson, J. M., Lemmel, H., Rauch, H., & Markland, T. E. (2012). Zeidler et al. Reply: Physical Review Letters, 108(259604). https://doi.org/10.1103/physrevlett.108.259604 ( reposiTUm)
Zawisky, M., Springer, J., & Lemmel, H. (2011). High angular resolution neutron interferometry. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 634(1), S46–S49. https://doi.org/10.1016/j.nima.2010.06.092 ( reposiTUm)
Zeidler, A., Salmon, P. S., Fischer, H. E., Neuefeind, J. C., Simonson, J. M., Lemmel, H., Rauch, H., & Markland, T. E. (2011). Oxygen as a Site Specific Probe of the Structure of Water and Oxide Materials. Physical Review Letters, 107(145501). https://doi.org/10.1103/physrevlett.107.145501 ( reposiTUm)
Abbas, S., Wagh, A. G., Loidl, R., Lemmel, H., & Rauch, H. (2011). Neutron Coherent Scattering Length Determination with a Dual Non-Dispersive Sample. AIP Conference Proceedings. https://doi.org/10.1063/1.3605953 ( reposiTUm)
Klepp, J., Pruner, C., Ellabban, M. A., Tomita, Y., Lemmel, H., Rauch, H., & Fally, M. (2011). Neutron-optical gratings from nanoparticle-polymer composites. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 634(1), S59–S62. https://doi.org/10.1016/j.nima.2010.06.360 ( reposiTUm)
Jenke, T., Geltenbort, P., Lemmel, H., & Abele, H. (2011). Realization of a gravity-resonance-spectroscopy technique. Nature Physics, 7(6), 468–472. https://doi.org/10.1038/nphys1970 ( 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)
Fally, M., Klepp, J., Tomita, Y., Nakamura, T., Pruner, C., Ellabban, M. A., Rupp, R. A., Bichler, M., Olenik, I. D., Kohlbrecher, J., Eckerlebe, H., Lemmel, H., & Rauch, H. (2010). Neutron Optical Beam Splitter from Holographically Structured Nanoparticle-Polymer Composites. Physical Review Letters, 105(123904). https://doi.org/10.1103/physrevlett.105.123904 ( reposiTUm)
Lemmel, H., & Wagh, A. G. (2010). Phase shifts and wave-packet displacements in neutron interferometry and a nondispersive, nondefocusing phase shifter. Physical Review A, 82, 033626-1-033626–033629. http://hdl.handle.net/20.500.12708/167811 ( reposiTUm)
Springer, J., Zawisky, M., Farthofer, R., Lemmel, H., Suda, M., & Kuetgens, U. (2010). A large-areaneutron-interferometeroptimizedforcoherent beam deflection:Applications. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 615(3), 307–312. https://doi.org/10.1016/j.nima.2010.01.080 ( reposiTUm)
Springer, J., Zawisky, M., Lemmel, H., & Suda, M. (2010). A neutron interferometric measurement of a phase shift induced by Laue transmission. Acta Crystallographica. Section A: Foundations of Crystallography, 66(1), 17–21. https://doi.org/10.1107/s010876730904522x ( reposiTUm)
Sakurovs, R., Radliński, A. P., Melnichenko, Y. B., Blach, T., Cheng, G., Lemmel, H., & Rauch, H. (2009). Stability of the Bituminous Coal Microstructure upon Exposure to High Pressures of Helium. Energy and Fuels, 23(10), 5022–5026. https://doi.org/10.1021/ef900439d ( reposiTUm)
Westphal, G. P., & Lemmel, H. (2008). The perfection of loss-free counting. Journal of Radioanalytical and Nuclear Chemistry, 276(3), 601–607. https://doi.org/10.1007/s10967-008-0606-x ( reposiTUm)
Grass, F., Westphal, G. P., Lemmel, H., & Sterba, J. H. (2007). Rhodium in car exhaust tips by total automatic activation analysis. Journal of Radioanalytical and Nuclear Chemistry, 271(2), 503–506. http://hdl.handle.net/20.500.12708/169009 ( reposiTUm)
Lemmel, H. (2007). Dynamical diffraction of neutrons and transition from beam splitter to phase shifter case. Physical Review B, 76(144305). https://doi.org/10.1103/physrevb.76.144305 ( reposiTUm)
Westphal, G. P., Grass, F., Lemmel, H., Sterba, J., Schröder, P., & Bloch, Ch. (2007). Automatic activation analysis. Journal of Radioanalytical and Nuclear Chemistry, 271(1), 145–150. https://doi.org/10.1007/s10967-007-0120-6 ( reposiTUm)
Westphal, G. P., Grass, F., Lemmel, H., & Sterba, J. (2007). A low-cost system for rapid automatic neutron activation analysis at small research reactors. Journal of Radioanalytical and Nuclear Chemistry, 272(2), 267–271. https://doi.org/10.1007/s10967-007-0513-6 ( reposiTUm)
Grass, F., Westphal, G. P., Lemmel, H., & Sterba, J. (2007). Rhodium in car exhaust tips by total automatic activation analysis. Journal of Radioanalytical and Nuclear Chemistry, 271(2), 503–506. https://doi.org/10.1007/s10967-007-0237-7 ( 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)
Westphal, G. P., Lemmel, H., Grass, F., De Regge, P. P., Burns, K., & Markowicz, A. (2005). A neutron activation analyzer. Journal of Radioanalytical and Nuclear Chemistry, 263(3), 703–709. http://hdl.handle.net/20.500.12708/174218 ( reposiTUm)
Westphal, G. P., Lemmel, H., Grass, F., Gwozdz, R., Jöstl, K., Schröder, P., & Hausch, E. (2001). A gamma-spectrometry system for activation analysis. Journal of Radioanalytical and Nuclear Chemistry, 248(1), 53–60. https://doi.org/10.1023/a:1010617822574 ( reposiTUm)
Grass, F., Lemmel, H., Westphal, G. P., & Gwozdz, R. (2001). Total activation analysis: A new approach. Journal of Trace and Microprobe Techniques, 19(2), 211–216. https://doi.org/10.1081/tma-100002210 ( reposiTUm)

Beiträge in Tagungsbänden

Lemmel, H. (2024). Interferometry for understanding quantum physics. In Société Francaise Neutronique (Ed.), Journées de la diffusion neutronique 2024, Book of Abstracts (pp. 32–32). ( reposiTUm)
Abele, H., Jenke, T., & Lemmel, H. (2019). Happy birthday, ultra-cold neutron!∗. In International Workshop on Particle Physics at Neutron Sources (PPNS 2018) (Vol. 219). https://doi.org/10.1051/epjconf/201921901001 ( reposiTUm)

Beiträge in Büchern

Terzi, S., Daudin, R., Villanova, J., Srirangam, P., Lhuissier, P., Salvo, L., Boller, E., Schweins, R., Lindner, P., Blandin, J.-J., Lee, P., & Lemmel, H. (2014). X-Ray Tomography and Small-Angle Neutron Scattering Characterization of Nano-Composites: Static and In Situ Experiments. In J. Grandfield (Ed.), Light Metals 2014 (pp. 1389–1393). John Wiley & Sons, Ltd. http://hdl.handle.net/20.500.12708/28448 ( reposiTUm)

Präsentationen

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)
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)
Lemmel, H. (2017). Neutron Interferometry. Seminarreihe des Istituto Nazionale di Ricerca Metrologica, Turin, Italy. http://hdl.handle.net/20.500.12708/133775 ( 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)
Lemmel, H., Brax, P., Ivanov, A., Jenke, T., Pignol, G., Pitschmann, M., Potocar, T., Wellenzohn, M., Zawisky, M., & Abele, H. (2016). Neutron Interferometry constrains Dark Energy Chameleon Fields. Physics of Fundamental Symmetries and Interactions (2016), Villigen, Switzerland. http://hdl.handle.net/20.500.12708/132901 ( reposiTUm)
Lemmel, H. (2014). Non-dispersive phase shifters in neutron interferometry. GRANIT 2014-Workshop, Les Houches, France, EU. http://hdl.handle.net/20.500.12708/131148 ( reposiTUm)
Potocar, T., Zawisky, M., Lemmel, H., Springer, J., & Suda, M. (2014). Phase shift measurements with a neutron interferometer close to the Bragg condition. ICPS 2014, Heidelberg, Germany, EU. http://hdl.handle.net/20.500.12708/131287 ( reposiTUm)
Lemmel, H. (2014). Relativistic effects in atom and neutron interferometry and the differences between them. Relativistic effects in atom and neutron interferometry, Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/131220 ( 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)
Potocar, T., Zawisky, M., Lemmel, H., Springer, J., & Suda, M. (2013). Phase shift measurements with a neutron interferometer close to the Bragg. Symposium “Research at European Neutron and Synchrotron facilities,” Vienna, Austria, Austria. http://hdl.handle.net/20.500.12708/130454 ( reposiTUm)
Potocar, T., Zawisky, M., Lemmel, H., Springer, J., & Suda, M. (2013). New neutron interferometric measurement and calculations of a phase shift induced by Laue transmission. ÖPG-Tagung 2013, Linz, Ausria, Austria. http://hdl.handle.net/20.500.12708/128636 ( reposiTUm)
Potocar, T., Zawisky, M., Lemmel, H., Springer, J., & Suda, M. (2013). Neutron Interferometric measurement of a phase shift induced by Laue transmission. Doktorantentreffen SPP 1491, Garmisch-Patenkirchen, Germany, EU. http://hdl.handle.net/20.500.12708/130244 ( 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)
Jenke, T., Bittner, T., Cronenberg, G., Filter, H., Geltenbort, P., Lemmel, H., Thalhammer, M., & Abele, H. (2012). Spectroscopy of Gravity. DPG Frühjahrstagung 2012, Stuttgart, Germany, EU. http://hdl.handle.net/20.500.12708/130077 ( reposiTUm)
Jenke, T., Bittner, T., Cronenberg, G., Filter, H., Geltenbort, P., Ivanov, A. N., Lemmel, H., Thalhammer, M., & Abele, H. (2012). Gravity Resonance Spectroscopy within the qBounce experiments. ÖPG Jahrestagung 2012, Graz, Austria, Austria. http://hdl.handle.net/20.500.12708/130079 ( reposiTUm)
Jenke, T., Bittner, T., Cronenberg, G., Filter, H., Geltenbort, P., Lemmel, H., Thalhammer, M., & Abele, H. (2012). Gravity Resonance Spectroscopy. Status Meeting zum DFG Schwerpunktprogramm 1491, Frauenchiemsee, EU. http://hdl.handle.net/20.500.12708/130078 ( reposiTUm)
Jenke, T., Geltenbort, P., Lemmel, H., & Abele, H. (2011). Realization of a Gravity - Resonance - Spectroscopy Technique. ÖPG Tagung, Linz, Österreich, Austria. http://hdl.handle.net/20.500.12708/128902 ( 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)
Jenke, T., Geltenbort, P., Lemmel, H., & Abele, H. (2010). Rabi Spectroscopy and Excitation in a 1D Gravity Cavity of neutron matter waves. International WE Heraeus Research School on Frontiers in Matter Wave Interferometry, Physikzentrum Bad Honnef, Deutschland, EU. http://hdl.handle.net/20.500.12708/128385 ( 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)
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)
Lemmel, H., Badurek, G., & Jericha, E. (2008). Ein rotierender und amplitudengeregelter Spindreher für die dynamische Neutronenpolarisation. 58. Jahrestagung der Österreichischen Physikalischen Gesellschaft, Leoben, Austria. http://hdl.handle.net/20.500.12708/127056 ( reposiTUm)
Lemmel, H., Badurek, G., & Jericha, E. (2008). A rotating and ramped spin turner for dynamical neutron polarization. Deutsche Neutronenstreutagung 2008, München, EU. http://hdl.handle.net/20.500.12708/127053 ( reposiTUm)
Fittschen, U., Hauschild, S., Amberger, M. A., Lemmel, H., Streli, C., Förster, S., Wobrauschek, P., Jokubonis, C., Pepponi, G., Falkenberg, G., & Broekaert, J. A. (2006). Pico-Droplets (pL) for direct calibration in SRTXRF. Satellite Meeting "X-Ray Fluorescence and Applications at Beamline L 2006, HASYLAB Hamburg (Deutschland), EU. http://hdl.handle.net/20.500.12708/126209 ( 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)
Lemmel, H., Loidl, R., & Rauch, H. (2006). Confinement-induced Neutron Phase. The ILL Millenium Symposium, Grenoble (France), EU. http://hdl.handle.net/20.500.12708/126169 ( reposiTUm)
Lemmel, H., & Rauch, H. (2006). Neutron quantization within narrow slits. Int. Workshop on Resonance Transitions between Gravitationally Bound Neutron States, Grenoble (France), EU. http://hdl.handle.net/20.500.12708/126165 ( reposiTUm)
Fittschen, U., Hauschild, S., Amberger, M. A., Lemmel, H., Streli, C., Förster, S., Wobrauschek, P., Jokubonis, C., Pepponi, G., Falkenberg, G., & Broekaert, J. A. (2006). Pico-Droplets (pL) for direct calibration in SRTXRF. Hasylab User Meeting, Hamburg, Austria. http://hdl.handle.net/20.500.12708/126212 ( reposiTUm)
Lemmel, H. (2006). Neutron Quantization within Narrow Slits. GRANIT Workshop (Gravitational Neutron Induced Transit), Grenoble (France), EU. http://hdl.handle.net/20.500.12708/125950 ( 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)
Westphal, G. P., Grass, F., Lemmel, H., & Sterba, J. H. (2005). Automatischer Aktivierungsanalysator. Activation Analysis Seminar, GArching (Deutschland), EU. http://hdl.handle.net/20.500.12708/125878 ( reposiTUm)
Westphal, G. P., Grass, F., Sterba, J. H., & Lemmel, H. (2005). Rapid Automatic Neutron Activation Analysis. IAEA Technical Meeting: Large Sample NAA, Wien (Österreich), Austria. http://hdl.handle.net/20.500.12708/125880 ( reposiTUm)
Grass, F., Westphal, G. P., Gwozdz, R., Sterba, J. H., & Lemmel, H. (2005). Total Activation Analysis of Enlarged Samples. IAEA Technical Meeting: Large Sample NAA, Wien (Österreich), Austria. http://hdl.handle.net/20.500.12708/125879 ( reposiTUm)
Westphal, G. P., Grass, F., Lemmel, H., & Sterba, J. H. (2005). A System for Rapid Automatic Neutron Activation Analysis. Asia-Pacific Symposium on Radiochemistry (APSORC-05), Beijing (China), Non-EU. http://hdl.handle.net/20.500.12708/125881 ( reposiTUm)
Lemmel, H., & Rauch, H. (2005). Confinement induced neutron phase. ÖPG Jahrestagung 2005, Wien, Austria. http://hdl.handle.net/20.500.12708/125628 ( 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)
Westphal, G. P., Grass, F., Lemmel, H., & Sterba, J. H. (2004). Automatic Activation Analysis at a Triga Reactor. 2nd World TRIGA Users Conf., Atominstitut (Wien), Austria. http://hdl.handle.net/20.500.12708/124887 ( reposiTUm)
Westphal, G. P., Grass, F., Lemmel, H., & Sterba, J. H. (2004). Automatic Activation Analysis. 11th Int. Conf. “Modern Trends in Activation Analysis,” Univ. of Surrey, Guildford (UK), Austria. http://hdl.handle.net/20.500.12708/124886 ( reposiTUm)
Lemmel, H., & Rauch, H. (2004). Confinement induced Neutron Phase. Int. Conf. Precision Measurements with Slow Neutrons, NIST, Gaithersburg, MD (USA), Austria. http://hdl.handle.net/20.500.12708/125137 ( reposiTUm)
Lemmel, H., & Rauch, H. (2004). Confinement Induced Neutron Phase. 333th Int. W. und E. Heraeus Seminar on New Frontiers in Quantum Theory and Measurement, Schloss Reisensburg, Günzburg (Deutschland), Austria. http://hdl.handle.net/20.500.12708/125142 ( reposiTUm)
Lemmel, H., Baron, M., Loidl, R., & Rauch, H. (2003). Confinement Induced Phase Shift of Neutrons. 10th. Central-European Workshop on Quantum Optics, Rostock-Warnemünde (Deutschland), Austria. http://hdl.handle.net/20.500.12708/124623 ( reposiTUm)
Lemmel, H., Baron, M., Loidl, R., & Rauch, H. (2003). Confinement Induced Phase Shift of Neutrons. Obergurgl Meeting 2003, Obergurgl, Tirol, Austria. http://hdl.handle.net/20.500.12708/124624 ( reposiTUm)
Westphal, G. P., Lemmel, H., Grass, F., De Regge, P. P., Burns, K., & Markowicz, A. (2003). An Expert System for NAA ? 3rd African Research Reactors Conf., Rabatt (Morocco), Austria. http://hdl.handle.net/20.500.12708/124888 ( reposiTUm)
Westphal, G. P., Lemmel, H., Grass, F., De Regge, P. P., Burns, K., & Markowicz, A. (2003). A Neutron Activation Analyser. 6th Int. Conf. on Methods and Applications of Radioanalytical  Chemistry, Kona (Hawaii), Austria. http://hdl.handle.net/20.500.12708/124890 ( reposiTUm)
Westphal, G. P., Grass, F., Lemmel, H., Niedermaier, H., Jöstl, K., Schröder, P., Böck, H., Schachner, H., & Klapfer, E. (2002). Low-cost Activation Analysis at Small Research Reactors. 4th Int. Conf. on Isotopes, Cape Town (South Africa), Austria. http://hdl.handle.net/20.500.12708/123920 ( reposiTUm)
Westphal, G. P., Grass, F., Lemmel, H., Niedermaier, H., Jöstl, K., Schröder, P., Böck, H., Schachner, H., Klapfer, E., De Regge, P. P., Burns, K., & Markovics, A. (2002). Large Sample Activation Analysis at Small Research Reactors. 7th Int. Conf. on Nuclear Analytical Methods in the Life Sciences, Antalya (Turkey), Austria. http://hdl.handle.net/20.500.12708/123921 ( reposiTUm)

Spezialbeiträge

Lemmel, H., Sponar, S., & Hofmann, H. F. (2022). Pfadbestimmung im Doppelspalt (Issue 11.22, pp. 24–26). ( reposiTUm)

Hochschulschriften

Lemmel, H. (2006). Confinement induced neutron phase [Dissertation, Technische Universität Wien]. reposiTUm. https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:1-14457 ( reposiTUm)
Lemmel, H. (2000). Phasenschub von Neutronen in engen Kanälen [Diploma Thesis, Technische Universität Wien]. reposiTUm. http://hdl.handle.net/20.500.12708/178109 ( reposiTUm)