Entangled states that cannot reproduce original classical games in their quantum version

Junichi Shimamura, Şahin Kaya Özdemir, Fumiaki Morikoshi, Nobuyuki Imoto

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

A model of a quantum version of classical games should reproduce the original classical games in order to be able to make a comparative analysis of quantum and classical effects. We analyze a class of symmetric multipartite entangled states and their effect on the reproducibility of the classical games. We present the necessary and sufficient condition for the reproducibility of the original classical games. Satisfying this condition means that complete orthogonal bases can be constructed from a given multipartite entangled state provided that each party is restricted to two local unitary operators. We prove that most of the states belonging to the class of symmetric states with respect to permutations, including the N-qubit W state, do not satisfy this condition.

Original languageEnglish (US)
Pages (from-to)20-25
Number of pages6
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume328
Issue number1
DOIs
StatePublished - Jul 19 2004

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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