Cooling dynamics of ultracold two-species Fermi-Bose mixtures

Preprint

27 January 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0301517

Abstract

We compare strategies for evaporative and sympathetic cooling of two-species Fermi-Bose mixtures in single-color and two-color optical dipole traps. We show that in the latter case a large heat capacity of the bosonic species can be maintained during the entire cooling process. This could allow to efficiently achieve a deep Fermi degeneracy regime having at the same time a significant thermal fraction for the Bose gas, crucial for a precise thermometry of the mixture. Two possible signatures of a superfluid phase transition for the Fermi species are discussed.

Keywords

FERMI BOSE MIXTURES
SPECIES FERMI BOSE
TWO SPECIES FERMI
PHASE TRANSITION
COOLING

All Related Versions

Version 1, 2003-01-27, ArXiv
Published version: Physical Review Letters, 90 (3), 030404.

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