Cross-Dimensional relaxation in Bose-Fermi mixtures

Abstract

We consider the equilibration rate for fermions in Bose-Fermi mixtures undergoing cross-dimensional rethermalization. Classical Monte Carlo simulations of the relaxation process are performed over a wide range of parameters, focusing on the effects of the mass difference between species and the degree of initial departure from equilibrium. A simple analysis based on Enskog's equation is developed and shown to be accurate over a variety of different parameter regimes. This allows predictions for mixtures of commonly used alkali atoms.

7 pages, 4 figures, uses Revtex 4. This is a companion paper to [PRA 70, 021601(R) (2004)] (cond-mat/0405419)

References in corpus (8)

• Inter-isotope determination of ultracold rubidium interactions from three high-precision experiments
• Observation of p-wave Threshold Law Using Evaporatively Cooled Fermionic Atoms
• Collective oscillations of a classical gas confined in harmonic traps
• Measurement of the interaction strength in a Bose-Fermi mixture with 87Rb and 40K
• Mixture of ultracold lithium and cesium atoms in an optical dipole trap
• Collisional relaxation in diffuse clouds of trapped bosons
• Relaxation Processes in Clouds of Trapped Bosons above the Bose-Einstein Condensation Temperature
• Kinetic Properties of a Bose-Einstein Gas at Finite Temperature

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• Accurate determination of the scattering length of erbium atoms
• Density Oscillations Induced by Individual Ultracold Two-Body Collisions
• Anisotropic thermalization of dilute dipolar gases
• Nonequilibrium dynamics of an ultracold dipolar gas
• Two- and three-body problem with Floquet-driven zero-range interactions
• Collective excitations in Bose-Fermi mixtures