Quantum corrections to a spin-orbit coupled Bose-Einstein Condensate

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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2019-08-22

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Department of Applied Physics

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Language

en

Pages

1-15

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Physical Review A, Volume 100, issue 2

Abstract

We study systematically the quantum corrections to a weakly interacting Bose-Einstein condensate with spin-orbit coupling. We show that quantum fluctuations, enhanced by the spin-orbit coupling, modify quantitatively the mean-field properties such as the superfluid density, spin polarizability, and sound velocity. We find that the phase boundary between the plane wave and zero momentum phases is shifted to a smaller transverse field. We also calculate the Beliaev and Landau damping rates and find that the Landau process dominates the quasiparticle decay even at low temperature.

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DOI

10.1103/PhysRevA.100.023619

Citation

Liang, L & Törmä, P 2019, ' Quantum corrections to a spin-orbit coupled Bose-Einstein Condensate ', Physical Review A, vol. 100, no. 2, 023619, pp. 1-15 . https://doi.org/10.1103/PhysRevA.100.023619

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https://urn.fi/URN:NBN:fi:aalto-201909205333

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[article-cris] Perustieteiden korkeakoulu / SCI