Erne, S. (2022, March 23). An analogue view on quantum vortex dynamics [Keynote Presentation]. Seminar Advances in Quantum Science and Quantum Technology, Atominstitut Wien, Austria.
E141-02 - Forschungsbereich Atom Physics and Quantum Optics
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Date (published):
23-Mar-2022
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Event name:
Seminar Advances in Quantum Science and Quantum Technology
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Event date:
23-Mar-2022
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Event place:
Atominstitut Wien, Austria
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Keywords:
cold atoms; vortex flows; many-body systems
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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. Following a general introduction to continuous analogue quantum simulators, I will present some recent results on vortex dynamics in Bose Einstein condensates, in particular the sound-ring radiation of dense vortex clusters and the superradiant instability leading to the decay of multiply quantized vortices. For the latter, a meta-stable bound state for vortices of the same circulation is found in finite size systems. A WKB analysis captures the relevant dynamical processes, consistent with full simulations of the stochastic Gross-Pitaevskii equation.
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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 Modeling and Simulation: 40% Quantum Many-body Systems Physics: 60%
