Entanglement as a Resource for Local State Discrimination in Multipartite Systems

SMC Author

Michael Nathanson

SMC Affiliated Work

1

Status

Faculty

School

School of Science

Department

Math/Computer Science

Document Type

Article

Publication Date

8-11-2016

Publication / Conference / Sponsorship

PHYSICAL REVIEW A

Description/Abstract

We explore the question of using an entangled state as a universal resource for implementing quantum measurements by local operations and classical communication (LOCC). We show that for most systems consisting of three or more subsystems, there is no entangled state from the same space that can enable all measurements by LOCC. This is in direct contrast to the bipartite case, where a maximally entangled state is a universal resource. Our results are obtained showing an equivalence between the problem of local state transformation and that of entanglement-assisted local unambiguous state discrimination.

Scholarly

yes

DOI

10.1103/PhysRevA.94.022311

Volume

94

Issue

2

Disciplines

Physics

Rights

Open Access. Author manuscript (arXiv)

Original Citation

Bandyopadhyay, S., Halder, S., Nathanson, M. “Entanglement as a resource for local state discrimination in multipartite systems.” Phys. Rev. A 94, August 11, 2016. doi:10.1103/PhysRevA.94.022311. http://journals.aps.org/pra/abstract/10.1103/PhysRevA.94.022311

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