| Issue |
EPL
Volume 85, Number 1, January 2009
|
|
|---|---|---|
| Article Number | 10005 | |
| Number of page(s) | 5 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/85/10005 | |
| Published online | 21 January 2009 | |
Casimir forces in a quasi
one-dimensional trapped dilute Bose gas
1
The State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University - Guangzhou 510275, China
2
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences Beijing 100080, China
Corresponding author: XLYu@aphy.iphy.ac.cn
Received:
29
October
2008
Accepted:
9
December
2008
We discuss a Casimir force due to zero-temperature quantum fluctuations in
an interacting quasione-dimensional Bose-Einstein condensate (BEC). For the first
time, we can investigate the effect of the trapping potential and the atom-atom interaction
simultaneously both of which contribute to the Casimir force. Furthermore, we calculate the Casimir
force due to thermal fluctuations at finite temperature. Finally, we speculate on some possible
experimental realization and detection of the force in future experiments.
PACS: 03.75.Kk – Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow / 05.30.Jp – Boson systems / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion
© EPLA, 2009
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