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

@article{Mazets2008BreakdownOI, title={Breakdown of integrability in a quasi-1D ultracold bosonic gas.}, author={Igor E. Mazets and Thorsten Schumm and J{\"o}rg Schmiedmayer}, journal={Physical review letters}, year={2008}, volume={100 21}, pages={ 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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