Quasi-one-dimensional bosons in three-dimensional traps: From strong-coupling to weak-coupling regime

Journal Article · Mon Aug 15 00:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.72.025602· OSTI ID:20718246

Salasnich, L; Reatto, L ^[1]; Parola, A ^[2]

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1. Dipartimento di Fisica and INFM, Universita di Milano, Via Celoria 16, 20133 Milan (Italy)
2. Dipartimento di Scienze Fisiche and INFM, Universita dell'Insubria, Via Valeggio 11, 23100 Como (Italy)

We analyze a recent experiment on a Tonks-Girardeau gas of {sup 87}Rb atoms [T. Kinoshita, T. Wenger, and D.S. Weiss, Science 305, 1125 (2004)]. We find that the experimental data are compatible with the one-dimensional theory of Lieb, Seiringer, and Yngvason [Phys. Rev. Lett. 91, 150401 (2003)] but are better described by a theory that takes into account variations in the transverse width of the atomic cloud. By using this theory we investigate also the free axial expansion of the {sup 87}Rb gas in different regimes, Tonks-Girardeau gas, one-dimensional Bose-Einstein condensate and three-dimensional Bose-Einstein condensate.

• OSTI ID: 20718246
• Journal Information: Physical Review. A, Vol. 72, Issue 2; Other Information: DOI: 10.1103/PhysRevA.72.025602; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
BOSE-EINSTEIN CONDENSATION
BOSONS
COUPLING
ONE-DIMENSIONAL CALCULATIONS
RUBIDIUM
RUBIDIUM 87
STRONG-COUPLING MODEL
THREE-DIMENSIONAL CALCULATIONS
TRAPS
VARIATIONS