A Bose gas in a double well is investigated in the presence of single-particle, two-body, and three-body asymmetric loss. The loss induces an interesting decay behavior of the total population as well as a possibility to control the dynamics of the system. In the noninteracting limit with asymmetric single-body dissipation, the dynamics of the populations can be obtained analytically. The general many-body problem requires, however, an adequate approximation. We use a mean-field approximation and the Bogoliubov back reaction beyond mean-field truncation, which we extend up to three-body loss. Both methods are compared with exact many-body Monte Carlo simulations.
Asymmetric many-body loss in a bosonic double well / Zakari, Denis; Antonio, Tiene; Luca, Salasnich; Sandro, Wimberger. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 97:1(2018), pp. 013602-1-013602-9. [10.1103/PhysRevA.97.013602]
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