dorsal/arxiv
View SchemaChains of Quasi-Classical Informations for Bipartite Correlations and the Role of Twin Observables
| Authors | F. Herbut |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0305187 |
| URL | https://arxiv.org/abs/quant-ph/0305187 |
| DOI | 10.1103/PhysRevA.66.052321 |
| Journal | Phys. Rev. A 66 (2002) 052321-1-6 |
Abstract
Having the quantum correlations in a general bipartite state in mind, the information accessible by simultaneous measurement on both subsystems is shown never to exceed the information accessible by measurement on one subsystem, which, in turn is proved not to exceed the von Neumann mutual information. A particular pair of (opposite- subsystem) observables are shown to be responsible both for the amount of quasi-classical correlations and for that of the purely quantum entanglement in the pure-state case: the former via simultaneous subsystem measurements, and the latter through the entropy of coherence or of incompatibility, which is defined for the general case. The observables at issue are so-called twin observables. A general definition of the latter is given in terms of their detailed properties.
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"abstract": "Having the quantum correlations in a general bipartite state in mind, the\ninformation accessible by simultaneous measurement on both subsystems is shown\nnever to exceed the information accessible by measurement on one subsystem,\nwhich, in turn is proved not to exceed the von Neumann mutual information. A\nparticular pair of (opposite- subsystem) observables are shown to be\nresponsible both for the amount of quasi-classical correlations and for that of\nthe purely quantum entanglement in the pure-state case: the former via\nsimultaneous subsystem measurements, and the latter through the entropy of\ncoherence or of incompatibility, which is defined for the general case. The\nobservables at issue are so-called twin observables. A general definition of\nthe latter is given in terms of their detailed properties.",
"arxiv_id": "quant-ph/0305187",
"authors": [
"F. Herbut"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevA.66.052321",
"journal_ref": "Phys. Rev. A 66 (2002) 052321-1-6",
"title": "Chains of Quasi-Classical Informations for Bipartite Correlations and the Role of Twin Observables",
"url": "https://arxiv.org/abs/quant-ph/0305187"
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