Local distinguishability of multipartite orthogonal quantum states

J  Walgate; A J  Short; L  Hardy; V  Vedral

Local distinguishability of multipartite orthogonal quantum states

J Walgate, A J Short, L Hardy, V Vedral

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

313 Citations (Scopus)

Abstract

We consider one copy of a quantum system prepared in one of two orthogonal pure states, entangled or otherwise, and distributed between any number of parties. We demonstrate that it is possible to identify which of these two states the system is in by means of local operations and classical communication alone. The protocol we outline is both completely reliable and completely general; it will correctly distinguish any two orthogonal states 100% of the time.

Original language	English
Pages (from-to)	4972-4975
Number of pages	4
Journal	Physical Review Letters
Volume	85
Issue number	23
Publication status	Published - 4 Dec 2000

Cite this

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title = "Local distinguishability of multipartite orthogonal quantum states",

abstract = "We consider one copy of a quantum system prepared in one of two orthogonal pure states, entangled or otherwise, and distributed between any number of parties. We demonstrate that it is possible to identify which of these two states the system is in by means of local operations and classical communication alone. The protocol we outline is both completely reliable and completely general; it will correctly distinguish any two orthogonal states 100% of the time.",

author = "J Walgate and Short, {A J} and L Hardy and V Vedral",

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T1 - Local distinguishability of multipartite orthogonal quantum states

AU - Walgate, J

AU - Short, A J

AU - Hardy, L

AU - Vedral, V

PY - 2000/12/4

Y1 - 2000/12/4

N2 - We consider one copy of a quantum system prepared in one of two orthogonal pure states, entangled or otherwise, and distributed between any number of parties. We demonstrate that it is possible to identify which of these two states the system is in by means of local operations and classical communication alone. The protocol we outline is both completely reliable and completely general; it will correctly distinguish any two orthogonal states 100% of the time.

AB - We consider one copy of a quantum system prepared in one of two orthogonal pure states, entangled or otherwise, and distributed between any number of parties. We demonstrate that it is possible to identify which of these two states the system is in by means of local operations and classical communication alone. The protocol we outline is both completely reliable and completely general; it will correctly distinguish any two orthogonal states 100% of the time.

M3 - Article (Academic Journal)

VL - 85

SP - 4972

EP - 4975

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 23

ER -