Compressible quantum turbulence with ultra-cold atoms.
ORAL
Abstract
Ultracold atoms provide an experimental platform for studying compressible quantum turbulence with broad applications as quantum simulators of other systems including neutron stars. As first suggested by Feynman, quantized vortices play a key role in quantum turbulence, providing a microscopic mechanism for energy transfer across different scales. Theoretical descriptions of quantum turbulence tend to focus on properties of these vortices, but this description is complicated when the fluid is compressible as there are multiple ways to partition the energy between rotational and compressional flow. In this talk I will discuss some aspects of compressible quantum turbulence, and showcase results of large-scale simulations including turbulence in rotating and non-rotating systems.
*This work was supported in part by the National Science Foundation (NSF) through Grant No. PHY-2012190, the Polish National Science Center (NCN) under Contracts No. UMO-2017/26/E/ST3/00428 and No. UMO-2017/27/B/ST2/02792. Computing resources include PRACE (Decision No. 2017174125), and the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract No. DE-AC05-00OR22725.
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Publication: K. Hossain, K. Kobuszewski, M. M. Forbes, P. Magierski, K. Sekizawa, and G. Wlazłowski, "Rotating quantum turbulence in the unitary Fermi gas", Phys. Rev. A 105, 013304 (2022) https://doi.org/10.1103/PhysRevA.105.013304
Presenters
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Michael M Forbes
- Washington State University
- Washington State Univ
- Washington State University, University of Washington
- Washington State Univ and Univ of Washington