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Crow instability in unitary Fermi gas

Gautam, Sandeep (2013) Crow instability in unitary Fermi gas. In: Modern Physics Letters B, 27 (14). 1350097_1-1350097_13.

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Official URL: http://dx.doi.org/10.1142/S0217984913500978


In this paper, we investigate the initiation and subsequent evolution of Crow instability in an inhomogeneous unitary Fermi gas using zero-temperature Galilei-invariant nonlinear Schrodinger equation. Considering a cigar-shaped unitary Fermi gas, we generate the vortex-antivortex pair either by phase-imprinting or by moving a Gaussian obstacle potential. We observe that the Crow instability in a unitary Fermi gas leads to the decay of the vortex-antivortex pair into multiple vortex rings and ultimately into sound waves.

Item Type: Journal Article
Publication: Modern Physics Letters B
Publisher: World Scientific Publishing Company
Additional Information: Copyright of this article belongs to World Scientific Publishing Company.
Keywords: Crow Instability; Unitary Fermi Gas; Vortex Rings
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 27 Jun 2013 07:42
Last Modified: 04 Feb 2019 10:17
URI: http://eprints.iisc.ac.in/id/eprint/46745

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