Orthogonality catastrophe and decoherence in a trapped-Fermion environment

Salvatore Lorenzo, Goold, Lo Gullo, Lorenzo, Sindona, Plastina

Risultato della ricerca: Articlepeer review

44 Citazioni (Scopus)

Abstract

The Fermi-edge singularity and the Anderson orthogonality catastrophe describe the universal physics which occurs when a Fermi sea is locally quenched by the sudden switching of a scattering potential, leading to a brutal disturbance of its ground state. We demonstrate that the effect can be seen in the controllable domain of ultracold trapped gases by providing an analytic description of the out-of-equilibrium response to an atomic impurity, both at zero and at finite temperature. Furthermore, we link the transient behavior of the gas to the decoherence of the impurity, and to the degree of the non-Markovian nature of its dynamics.
Lingua originaleEnglish
pagine (da-a)165303-165303
Numero di pagine5
RivistaPhysical Review Letters
Volume111
Stato di pubblicazionePublished - 2013

All Science Journal Classification (ASJC) codes

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