Entanglement, local measurements and symmetry

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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
5
Issue
3
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
Keywords
Coherent states
Dynamic symmetry
Entanglement
Quantum communication channel
Quantum information
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http://hdl.handle.net/11693/49092
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