Breakdown of integrability in a quasi-one-dimensional ultracold bosonic gas

Details Breakdown of integrability in a quasi-one-dimensional ultracold bosonic gas Breakdown of integrability in a quasi-one-dimensional ultracold bosonic gas

2008-02-12

arxiv.org/abs/0802.1701v1

Phys. Rev. Lett. 100, 210403 (2008)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 figures, revtex4

Scientific paper

10.1103/PhysRevLett.100.210403

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.

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