arXiv
Open Access
2007
Visibility of a Bose-condensed gas released from an optical lattice at finite temperatures
Fabrice Gerbier
Simon Foelling
Artur Widera
Immanuel Bloch
Abstrak
In response to a recent manuscript [cond-mat/0609685] on the analysis of interference patterns produced by ultracold atoms released from an optical lattice, we point out that in the presence of a Bose-Einstein condensate the interference pattern can be strongly modified by interaction effects and the presence of a harmonic trap superimposed on the lattice potential. Our results show that the visibility of the interference pattern is significant only if a sizeable condensate fraction is present in the trap.
Topik & Kata Kunci
Penulis (4)
F
Fabrice Gerbier
S
Simon Foelling
A
Artur Widera
I
Immanuel Bloch
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2007
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