Entanglement, local measurements and symmetry

Klyachko, A. A.; Shumovsky, A. S.

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Author

Klyachko, A. A.

Shumovsky, A. S.

Date

2003

Source Title

Journal of Optics B: Quantum and Semiclassical Optics

Print ISSN

1464-4266

Publisher

Institute of Physics Publishing

Volume

Issue

Pages

S322 - S328

Language

English

Type

Article

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Abstract

AbstractAdefinition of entanglement in terms of local measurements is discussed.Namely, the maximum entanglement corresponds to the states that cause thehighest level of quantum fluctuations in all local measurements determinedby the dynamic symmetry group of the system. A number of examplesillustrating this definition is considered