Extension of the Generalized Hydrodynamics to the Dimensional Crossover Regime
- Journal Article
In an effort to address integrability breaking in cold gas experiments, we extend the integrable hydrodynamics of the Lieb-Liniger model with two additional components representing the population of atoms in the first and second transverse excited states, thus enabling a description of quasi-1D condensates. Collisions between different components are accounted for through the inclusion of a Boltzmann-type collision integral in the hydrodynamic equation. Contrary to standard generalized hydrodynamics, our extended model captures thermalization of the condensate at a rate consistent with experimental observations from a quantum Newton’s cradle setup. © 2021 American Physical Society Show more
Journal / seriesPhysical Review Letters
Pages / Article No.
PublisherAmerican Physical Society
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