SEPARABILITY AND ENTANGLEMENT OF COMPOSITE QUANTUM-SYSTEMS

Authors
LEWENSTEIN M SANPERA A
Citation
M. Lewenstein et A. Sanpera, SEPARABILITY AND ENTANGLEMENT OF COMPOSITE QUANTUM-SYSTEMS, Physical review letters, 80(11), 1998, pp. 2261-2264
Citations number
15
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
80
Issue
11
Year of publication
1998
Pages
2261 - 2264
Database
ISI
SICI code
0031-9007(1998)80:11<2261:SAEOCQ>2.0.ZU;2-6
Abstract
We provide a constructive algorithm to find the best separable approxi mation to an arbitrary density matrix of a composite quantum system of finite dimensions. The method leads to a condition of separability an d to a measure of entanglement.