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Squashed entanglement, also called CMI entanglement (CMI can be pronounced "see me"), is an information theoretic measure of quantum entanglement for a bipartite quantum system. If is the density matrix of a system composed of two subsystems and , then the CMI entanglement of system is defined by

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rdfs:label	Squashed entanglement (en)
rdfs:comment	Squashed entanglement, also called CMI entanglement (CMI can be pronounced "see me"), is an information theoretic measure of quantum entanglement for a bipartite quantum system. If is the density matrix of a system composed of two subsystems and , then the CMI entanglement of system is defined by (en)
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dcterms:subject	Quantum information science
Wikipage page ID	5577596 (xsd:integer)
Wikipage revision ID	1087469663 (xsd:integer)
Link from a Wikipage to another Wikipage	Quantum entanglement Qubits Entanglement of formation Partial trace Bayesian network Von Neumann entropy Functional (mathematics) Mutual information Strong Subadditivity of Quantum Entropy Density matrix Quantum information science Information theory Random variables Infimum Rate distortion theory Separable states
Link from a Wikipage to an external page	http://qip2011.quantumlah.org/scientificprogramme/movie.php%3Fid=1010.1750
sameAs	Squashed entanglement Squashed entanglement Squashed entanglement
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has abstract	Squashed entanglement, also called CMI entanglement (CMI can be pronounced "see me"), is an information theoretic measure of quantum entanglement for a bipartite quantum system. If is the density matrix of a system composed of two subsystems and , then the CMI entanglement of system is defined by where is the set of all density matrices for a tripartite system such that . Thus, CMI entanglement is defined as an extremum of a functional of . We define , the quantum Conditional Mutual Information (CMI), below. A more general version of Eq.(1) replaces the ``min" (minimum) in Eq.(1) by an ``inf" (infimum). When is a pure state, , in agreement with the definition of entanglement of formation for pure states. Here is the Von Neumann entropy of density matrix . (en)
prov:wasDerivedFrom	wikipedia-en:Squashed_entanglement?oldid=1087469663&ns=0
page length (characters) of wiki page	14507 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Squashed_entanglement
is Link from a Wikipage to another Wikipage of	Quantum entanglement Entropy of entanglement Index of physics articles (S) Multipartite entanglement CMI entanglement
is Wikipage redirect of	CMI entanglement
is foaf:primaryTopic of	wikipedia-en:Squashed_entanglement

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