E141-02 - Forschungsbereich Atom Physics and Quantum Optics
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Date (published):
22-Feb-2022
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Event name:
Quantum Optics 2022
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Event date:
21-Feb-2022 - 25-Feb-2022
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Event place:
Obergurgl, Austria
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Keywords:
cold atoms; many-body systems; Quantum Field Theory
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Abstract:
Ultracold atoms and their non-equilibrium evolution present an ideal platform to study fundamental processes of quantum field theory and the relaxation dynamics of quantum many-body systems. Here, we present recent results and future prospects for analogue quantum simulators based on effective field theory descriptions. In particular, we discuss the relaxation in an inhomogeneous extended bosonic Josephson junction and its connection to the sine-Gordon model, superradiant instabilities and recurrences in multiquantum vortex decay, common sound-rings during the relaxation of vortex clusters, and measurement of the analogue circular Unruh effect via local interferometric two-frequency detectors. The continuous non-destructive measurements of cold atom systems paves the way to study this fundamental and yet still untested prediction of quantum field theory, that a linearly accelerated observer in the vacuum observes a thermal state at the Unruh-temperature.
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Project title:
Analog Quantum Simulators: ESQ Discovery Schmiedmayer Huber (Österr. Akademie der Wissenschaften) Marie Sklodowska-Curie Cofunding of the fellow ship programme of the ESQ (Erwin Schrödinger Quantum Science Programme at the ÖAW: 801110 — ESQ (Österr. Akademie der Wissenschaften)
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Research Areas:
Quantum Many-body Systems Physics: 70% Design and Engineering of Quantum Systems: 30%