Interaction effects on dynamic correlations in non-condensed Bose gases
arXiv:1309.0667 · doi:10.1103/PhysRevA.89.023632
Abstract
We consider dynamic, i.e., frequency-dependent, correlations in non-condensed 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 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.
9 pages, 3 figures
References in corpus (14)
- Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
- Using photoemission spectroscopy to probe a strongly interacting Fermi gas
- Dynamics and statistical mechanics of ultra-cold Bose gases using c-field techniques
- Universal Spin Transport in a Strongly Interacting Fermi Gas
- Bragg spectroscopy of a strongly interacting 85Rb Bose-Einstein condensate
- Bragg spectroscopy of a strongly interacting Fermi gas
- Spin Drag and Spin-Charge Separation in Cold Fermi Gases
- Spin diffusion in Fermi gases
- Observation of local temporal correlations in trapped quantum gases
- Numerical method for evolving the Projected Gross-Pitaevskii equation
- Critical properties of a trapped interacting Bose gas
- Two point correlations of a trapped interacting Bose gas at finite temperature
- Spin drag Hall effect in a rotating Bose mixture
- Critical spin transport in Bose gases