Variational dynamics of open quantum systems in phase space - Archive ouverte HAL
Pré-Publication, Document De Travail Année : 2023

Variational dynamics of open quantum systems in phase space

Résumé

We present a method to simulate the dynamics of large driven-dissipative many-body open quantum systems using a variational encoding of the Wigner or Husimi-Q quasi-probability distributions. The method relies on Monte-Carlo sampling to maintain a polynomial computational complexity while allowing for several quantities to be estimated efficiently. As a first application, we present a proof of principle investigation into the physics of the driven-dissipative Bose-Hubbard model with weak nonlinearity, providing evidence for the high efficiency of the phase space variational approach.

Dates et versions

hal-04174838 , version 1 (01-08-2023)

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Debbie Eeltink, Filippo Vicentini, Vincenzo Savona. Variational dynamics of open quantum systems in phase space. 2023. ⟨hal-04174838⟩
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