Cloning and entropy in von Neumann algebras (Q2811526)
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scientific article; zbMATH DE number 6592166
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Cloning and entropy in von Neumann algebras |
scientific article; zbMATH DE number 6592166 |
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10 June 2016
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entropy
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clone
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broadcast
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0.90289795
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0.8760851
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0.86266124
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Cloning and entropy in von Neumann algebras (English)
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The authors study the entropy of the state in quantum measurement. The entropy of the final state of the system after measurement is bounded and attains the lower bound for the ``minimal entropy measurement''.NEWLINENEWLINEThey present two operations on states by a channel, broadcasting and cloning. They also have notions of an instrument and a dual instrument.NEWLINENEWLINEBased on results in [the second author, ``Entropy of quantum measurement'', Entropy 17, No. 3, 1181--1196 (2015; \url{doi:10.3390/e17031181})], they present a result on existence of a certain channel which clones a family of states and another on transformations of instruments on states.
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