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Title

Expansion of a quantum degenerate boson-fermion mixture

Author(s)

Hu, Hui;  Liu, Xia-Ji;  Modugno, Michele

Abstract

We study the expansion of an ultracold boson-fermion mixture released from an elongated magnetic trap, by using a scaling approach. We discuss in detail the role of the boson-fermion interaction on the evolution of the radial-to-axial aspect ratio of the condensate, and show that the latter depends crucially on the relative dynamics of the condensate and degenerate Fermi gas in the radial direction, which is characterized by the ratio between the trapping frequencies for fermions and bosons. The numerical solution of the scaling equations provides a reasonable agreement with the recent experiment [G. Roati et al., Phys. Rev. Lett. 89, 150403 (2002)].

Publication type

Journal article

Source

Physical Review A: Atomic, Molecular, and Optical Physics, Vol. 67, no. 6 (Jun 2003), article no. 063614

Publication year

2003

FOR Code(s)

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

Keyword(s)

Aspect ratio;  Boson-fermion mixtures;  Fermions;  Frequencies;  Quantum theory

Publisher

American Physical Society

ISSN

1050-2947

Publisher URL

http://dx.doi.org/10.1103/PhysRevA.67.063614

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

Peer reviewed