Spin hall mode in a trapped thermal rashba gas

J. Armaitis, J. Ruseckas, H.T.C. Stoof, R.A. Duine

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Abstract

We theoretically investigate a two-dimensional harmonically trapped gas of identical atoms with Rashba spin-orbit coupling and no interatomic interactions. In analogy with the spin Hall effect in uniform space, the gas exhibits a spin Hall mode. In particular, in response to a displacement of the center of mass of the system, spin-dipole moment oscillations occur. We determine the properties of these oscillations exactly and find that their amplitude strongly depends on the spin-orbit-coupling strength and the quantum statistics of the particles.

Original languageEnglish
Article number053625
Number of pages8
JournalPhysical Review A
Volume96
Issue number5
DOIs
Publication statusPublished - 20 Nov 2017

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