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Title

Thermodynamics of a trapped Bose-Fermi mixture

Author(s)

Hu, Hui;  Liu, Xia-Ji

Abstract

By using the Hartree-Fock-Bogoliubov equations within the Popov approximation, we investigate the thermodynamic properties of a dilute binary Bose-Fermi mixture confined in an isotropic harmonic trap. For mixtures with an attractive Bose-Fermi interaction, we find a sizable enhancement of the condensate fraction and of the critical temperature of Bose-Einstein condensation with respect to the predictions for a pure interacting Bose gas. Conversely, the influence of the repulsive Bose-Fermi interaction is less pronounced. The possible relevance of our results in current experiments on trapped 87Rb-40K mixtures is discussed.

Publication type

Journal article

Source

Physical Review A: Atomic, Molecular, and Optical Physics, Vol. 68, no. 2 (Aug 2003), article no. 023608

Publication year

2003

FOR Code(s)

0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics;  0204 Condensed Matter Physics;  0205 Optical Physics

Keyword(s)

Approximation theory;  Bose-Fermi mixtures;  Condensation;  Fermions;  Gas condensates;  Hamiltonians;  Isotropic harmonic traps;  Light scattering;  Quantum theory;  Thermodynamics

Publisher

American Physical Society

ISSN

1050-2947

Publisher URL

http://dx.doi.org/10.1103/PhysRevA.68.023608

Copyright

Copyright © 2003 The American Physical Society. The accepted manuscript of the paper is reproduced here for noncommerical purposes only in accordance with the copyright policy of the publisher.

Full text

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