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Teoreticheskaya i Matematicheskaya Fizika, 2015, Volume 182, Number 3, Pages 453–464
DOI: https://doi.org/10.4213/tmf8776 (Mi tmf8776) 		 
This article is cited in 7 scientific papers (total in 7 papers)

Estimating the output entropy of a tensor product of two quantum channels

G. G. Amosov

Steklov Mathematical Institute, RAS, Moscow, Russia
Full-text PDF (432 kB) Citations (7)
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DOI: https://doi.org/10.4213/tmf8776
Abstract: For a class of bipartite quantum states, we find a nontrivial lower bound on the entropy gain resulting from the action of a tensor product of the identity channel with an arbitrary channel. We use the obtained result to bound the output entropy of the tensor product of a dephasing channel with an arbitrary channel from below. We characterize phase-damping channels that are particular cases of dephasing channels.
Keywords: quantum channel, bipartite quantum system, entanglement, von Neumann entropy.
Funding agency Grant number
Russian Science Foundation 14-21-00162
Received: 07.08.2014
Revised: 29.09.2014
English version:
Theoretical and Mathematical Physics, 2015, Volume 182, Issue 3, Pages 397–406
DOI: https://doi.org/10.1007/s11232-015-0270-6
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: G. G. Amosov, “Estimating the output entropy of a tensor product of two quantum channels”, TMF, 182:3 (2015), 453–464; Theoret. and Math. Phys., 182:3 (2015), 397–406
Citation in format AMSBIB
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  • https://www.mathnet.ru/eng/tmf/v182/i3/p453
    • This publication is cited in the following 7 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    		Теоретическая и математическая физика Theoretical and Mathematical Physics
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    References:49
    First page:26
     
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