Breakdown of integrability in a quasi-1D ultracold bosonic gas

Breakdown of integrability in a quasi-1D ultracold bosonic gas

We demonstrate that virtual excitations of higher radial modes in an atomic Bose gas in a tightly confining waveguide result in effective three-body collisions that violate integrability in this quasi-one-dimensional quantum system and give rise to thermalization. The estimated thermalization rates...

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Veröffentlicht in:Physical review letters 2008-05, Vol.100 (21), p.210403-210403, Article 210403
Hauptverfasser: Mazets, I E, Schumm, T, Schmiedmayer, J
Format: Artikel
Sprache:eng
Schlagworte:
ATOM COLLISIONS
ATOMS
BOSE-EINSTEIN GAS
BREAKDOWN
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
EXCITATION
ONE-DIMENSIONAL CALCULATIONS
THERMALIZATION
THREE-BODY PROBLEM
WAVEGUIDES
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Beschreibung
Zusammenfassung:We demonstrate that virtual excitations of higher radial modes in an atomic Bose gas in a tightly confining waveguide result in effective three-body collisions that violate integrability in this quasi-one-dimensional quantum system and give rise to thermalization. The estimated thermalization rates are consistent with recent experimental results in quasi-1D dynamics of ultracold atoms.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.100.210403