Interaction effects on dynamic correlations in noncondensed Bose gases
Publication date
2014-02-24
Authors
Bezett, A.H.
Van Driel, H. J.
Mink, M. P.
Stoof, H.T.C.
Duine, R.A.
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Article
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Abstract
We consider dynamic, i.e., frequency-dependent, correlations in noncondensed ultracold atomic Bose gases. In particular, we consider the single-particle correlation function and its power spectrum. We compute this power spectrum for a one-component Bose gas, and we show how it depends on the interatomic interactions that lead to a finite single-particle relaxation time. As another example, we consider the power spectrum of spin-current fluctuations for a two-component Bose gas and show how it is determined by the spin-transport relaxation time.
Keywords
Atomic and Molecular Physics, and Optics
Citation
Bezett, A, Van Driel, H J, Mink, M P, Stoof, H T C & Duine, R A 2014, 'Interaction effects on dynamic correlations in noncondensed Bose gases', Physical Review A - Atomic, Molecular, and Optical Physics, vol. 89, no. 2, 023632. https://doi.org/10.1103/PhysRevA.89.023632