Phase-Fluctuating 3D Bose-Einstein Condensates in Elongated Traps
Journal Article
·
· Physical Review Letters
We find that in very elongated 3D trapped Bose gases, even at temperatures far below the BEC transition temperature T{sub c} , the equilibrium state will be a 3D condensate with fluctuating phase (quasicondensate). At sufficiently low temperatures the phase fluctuations are suppressed and the quasicondensate turns into a true condensate. The presence of the phase fluctuations allows for extending thermometry of Bose-condensed gases well below those established in current experiments.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40277230
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 5 Vol. 87; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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