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Article Dans Une Revue Physical Review B Année : 2023

Many-body quantum boomerang effect

Résumé

We study numerically the impact of many-body interactions on the quantum boomerang effect. We consider various cases: weakly interacting bosons, the Tonks-Girardeau gas, and strongly interacting bosons (which may be mapped onto weakly interacting fermions). Numerical simulations are performed using the time-evolving block decimation algorithm, a quasi-exact method based on matrix product states. In the case of weakly interacting bosons, we find a partial destruction of the quantum boomerang effect, in agreement with the earlier mean-field study [Phys. Rev. A \textbf{102}, 013303 (2020)]. For the Tonks-Girardeau gas, we show the presence of the full quantum boomerang effect. For strongly interacting bosons, we observe a partial boomerang effect. We show that the destruction of the quantum boomerang effect is universal and does not depend on the details of the interaction between particles.

Dates et versions

hal-03862319 , version 1 (21-11-2022)

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Jakub Janarek, Jakub Zakrzewski, Dominique Delande. Many-body quantum boomerang effect. Physical Review B, 2023, 107 (9), pp.094204. ⟨10.1103/PhysRevB.107.094204⟩. ⟨hal-03862319⟩
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