| BOUDA, Jan a Vladimír BŮŽEK. Purification and correlated measurements of bipartite mixed states. Physical Review A. New York: American physical society, 2002, roč. 65, č. 03, s. 034304-1;034304-4, 4 s. ISSN 1050-2947. |
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@article{395393,
author = {Bouda, Jan and Bůžek, Vladimír},
article_location = {New York},
article_number = {03},
keywords = {quantum information theory; entanglement; separability; factorability},
language = {eng},
issn = {1050-2947},
journal = {Physical Review A},
title = {Purification and correlated measurements of bipartite mixed states},
volume = {65},
year = {2002}
}
TY - JOUR
ID - 395393
AU - Bouda, Jan - Bůžek, Vladimír
PY - 2002
TI - Purification and correlated measurements of bipartite mixed states
JF - Physical Review A
VL - 65
IS - 03
SP - 034304-1;034304-4
EP - 034304-1;034304-4
PB - American physical society
SN - 10502947
KW - quantum information theory
KW - entanglement
KW - separability
KW - factorability
N2 - We prove that all purifications of a nonfactorable state (i.e., the state that cannot be expressed in a form $\rho_{AB}=\rho_A\otimes\rho_B$) are entangled. We also show that for any bipartite state there exists a pair of measurements that are correlated on this state if and only if the state is nonfactorable.
ER -
BOUDA, Jan a Vladimír BŮŽEK. Purification and correlated measurements of bipartite mixed states. \textit{Physical Review A}. New York: American physical society, 2002, roč.~65, č.~03, s.~034304-1;034304-4, 4 s. ISSN~1050-2947.
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