Impurity dephasing in a Bose–Hubbard model

Impurity dephasing in a Bose–Hubbard model

We study the dynamics of a two-level impurity embedded in a two-dimensional Bose–Hubbard (BH) model at zero temperature from an open quantum system perspective. Results for the decoherence across the whole phase diagram are presented, with a focus on the critical region close to the transition betwe...

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Bibliographic Details
Main Authors: Fabio Caleffi, Massimo Capone, Inés de Vega, Alessio Recati
Format: Article
Language:English
Published: IOP Publishing 2021-01-01
Series:New Journal of Physics
Subjects:
open quantum systems
pure dephasing
cold gases in optical lattices
Bose–Hubbard model
quasiparticles and collective excitations
Online Access:https://doi.org/10.1088/1367-2630/abe080

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