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arXiv · 2010.11214

Josephson oscillations in split one-dimensional Bose gases

Yuri D. van Nieuwkerk·Jörg Schmiedmayer·Fabian H. L. Essler
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Abstract

We consider the non-equilibrium dynamics of a weakly interacting Bose gas tightly confined to a highly elongated double well potential. We use a self-consistent time-dependent Hartree--Fock approximation in combination with a projection of the full three-dimensional theory to several coupled one-dimensional channels. This allows us to model the time-dependent splitting and phase imprinting of a gas initially confined to a single quasi one-dimensional potential well and obtain a microscopic description of the ensuing damped Josephson oscillations.

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Yuri D. van Nieuwkerk, Jörg Schmiedmayer, Fabian H. L. Essler. 2020-10-21. Josephson oscillations in split one-dimensional Bose gases. https://doi.org/10.21468/scipostphys.10.4.090

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