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arXiv · 1612.01858

Relaxation dynamics of two coherently coupled one-dimensional bosonic gases

Laura Foini·Thierry Giamarchi
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Abstract

In this work we consider the non-equilibrium dynamics of two tunnel coupled bosonic gases which are created from the coherent splitting of a one-dimensional gas. The consequences of the tunneling both in the non-stationary regime as well as at large time are investigated and compared with equilibrium results. In particular, within a semiclassical approximation, we compute correlation functions for the relative phase which are experimentally measurable and we observe a transient regime displaying oscillations as a function of the distance. The steady regime is very well approximated by a thermal state with a temperature independent of the tunneling strength.

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Laura Foini, Thierry Giamarchi. 2016-12-06. Relaxation dynamics of two coherently coupled one-dimensional bosonic gases. https://doi.org/10.1140/epjst%2Fe2016-60383-x

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