Entanglement of a mixed state of two qubit system

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dc.creatorChotorlishvili, Levan
dc.date2008-09-13
dc.date.accessioned2026-07-07T10:02:45Z
dc.date.available2026-07-07T10:02:45Z
dc.descriptionInteraction with environment may lead to the transition of quantum system from pure state to the mixed one. In this case, the problem of definition of entanglement may arise. In particular, quantitative measure of entanglement concurrence is introduced differently for pure and mixed states. To solve this problem, alternative definition of concurrence of mixed states is introduced in present work. In particular, concurrence of mixed states is determined as an average of pure states concurrences. Averaging is carried out over the quantum ensemble, corresponding to all possible realization of random variable.
dc.description9 pages
dc.identifierhttps://arxiv.org/abs/0809.2332
dc.identifierhttp://arxiv.org/abs/0809.2332
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/169086
dc.subjectQuantum Physics
dc.titleEntanglement of a mixed state of two qubit system
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