TY - JOUR
T1 - Interaction effects on dynamic correlations in noncondensed Bose gases
AU - Bezett, A.
AU - Van Driel, H. J.
AU - Mink, M. P.
AU - Stoof, H. T C
AU - Duine, R. A.
PY - 2014/2/24
Y1 - 2014/2/24
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84897744275&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.89.023632
DO - 10.1103/PhysRevA.89.023632
M3 - Article
AN - SCOPUS:84897744275
SN - 1050-2947
VL - 89
JO - Physical review. A, Atomic, molecular and optical physics
JF - Physical review. A, Atomic, molecular and optical physics
IS - 2
M1 - 023632
ER -