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arXiv · 2011.04318

Strong correlations in lossy one-dimensional quantum gases: from the quantum Zeno effect to the generalized Gibbs ensemble

Davide Rossini·Alexis Ghermaoui·Manel Bosch Aguilera·Rémy Vatré·Raphaël Bouganne·Jérôme Beugnon·Fabrice Gerbier·Leonardo Mazza
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Abstract

We consider strong two-body losses in bosonic gases trapped in one-dimensional optical lattices. We exploit the separation of time scales typical of a system in the many-body quantum Zeno regime to establish a connection with the theory of the time-dependent generalized Gibbs ensemble. Our main result is a simple set of rate equations that capture the simultaneous action of coherent evolution and two-body losses. This treatment gives an accurate description of the dynamics of a gas prepared in a Mott insulating state and shows that its long-time behaviour deviates significantly from mean-field analyses. The possibility of observing our predictions in an experiment with $^{174}$Yb in a metastable state is also discussed.

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Davide Rossini, Alexis Ghermaoui, Manel Bosch Aguilera, Rémy Vatré, Raphaël Bouganne, Jérôme Beugnon, Fabrice Gerbier, Leonardo Mazza. 2020-11-09. Strong correlations in lossy one-dimensional quantum gases: from the quantum Zeno effect to the generalized Gibbs ensemble. https://doi.org/10.1103/physreva.103.l060201

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