Distillation by repeated measurements: Continuous spectrum case

Giuseppe Compagno, Bruno Bellomo, Kazuya Yuasa, Hiromichi Nakazato

Risultato della ricerca: Article

2 Citazioni (Scopus)

Abstract

Repeated measurements on one part of a bipartite system strongly affect the other part that is not measured, the dynamics of which is regulated by an effective contracted evolution operator. When the spectrum of this operator is discrete, the nonmeasured system is driven into a pure state, irrespective of the initial state, provided that the spectrum satisfies certain conditions. We show here that, even in the case of continuous spectrum, an effective distillation can occur under rather general conditions. We confirm it by applying our formalism to a simple model.
Lingua originaleEnglish
pagine (da-a)060101-1-060101-4
Numero di pagine4
RivistaPHYSICAL REVIEW A
Volume82
Stato di pubblicazionePublished - 2010

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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