Entanglement frustration in multimode Gaussian states

Abstract

Bipartite entanglement between two parties of a composite quantum system can be quantified in terms of the purity of one party and there always exists a pure state of the total system that maximizes it (and minimizes purity). When many different bipartitions are considered, the requirement that purity be minimal for all bipartitions gives rise to the phenomenon of entanglement frustration. This feature, observed in quantum systems with both discrete and continuous variables, can be studied by means of a suitable cost function whose minimizers are the maximally multipartite-entangled states (MMES). In this paper we extend the analysis of multipartite entanglement frustration of Gaussian states in multimode bosonic systems. We derive bounds on the frustration, under the constraint of finite mean energy, in the low- and high-energy limits.


Tutti gli autori

  • FACCHI P.;PASCAZIO S.

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2012

ISSN

0219-8878

ISBN

Non Disponibile


Numero di citazioni Wos

2

Ultimo Aggiornamento Citazioni

Non Disponibile


Numero di citazioni Scopus

2

Ultimo Aggiornamento Citazioni

Non Disponibile


Settori ERC

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Codici ASJC

Non Disponibile