Local Channels under Decomposition of Quantum Gates in Bipartite Systems

For a bipartite quantum system with Hilbert space Hm⊗Hn, this paper considers a quantum channel ϕ from the system to itself which preserves the set of separable states. Within this class of quantum channels, the paper characterizes those channels which preserve the Tsallis entropy of combinations of...

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Main Authors: Yihui Lao, Pei Wang, Shanli Liao
Format: Article
Language:English
Published: Hindawi Limited 2023-01-01
Series:Journal of Mathematics
Online Access:http://dx.doi.org/10.1155/2023/2130374
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author Yihui Lao
Pei Wang
Shanli Liao
author_facet Yihui Lao
Pei Wang
Shanli Liao
author_sort Yihui Lao
collection DOAJ
description For a bipartite quantum system with Hilbert space Hm⊗Hn, this paper considers a quantum channel ϕ from the system to itself which preserves the set of separable states. Within this class of quantum channels, the paper characterizes those channels which preserve the Tsallis entropy of combinations of separable states through decomposing quantum gates, where the characterization is given in terms of the action of the channel on separable states.
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spelling doaj.art-3d2308d7e6d74c42808a58a747ccc80c2023-03-22T00:00:10ZengHindawi LimitedJournal of Mathematics2314-47852023-01-01202310.1155/2023/2130374Local Channels under Decomposition of Quantum Gates in Bipartite SystemsYihui Lao0Pei Wang1Shanli Liao2Guangxi Universities Key Lab of Complex System Optimization and Big Data ProcessingGuangxi Universities Key Lab of Complex System Optimization and Big Data ProcessingGuangxi Universities Key Lab of Complex System Optimization and Big Data ProcessingFor a bipartite quantum system with Hilbert space Hm⊗Hn, this paper considers a quantum channel ϕ from the system to itself which preserves the set of separable states. Within this class of quantum channels, the paper characterizes those channels which preserve the Tsallis entropy of combinations of separable states through decomposing quantum gates, where the characterization is given in terms of the action of the channel on separable states.http://dx.doi.org/10.1155/2023/2130374
spellingShingle Yihui Lao
Pei Wang
Shanli Liao
Local Channels under Decomposition of Quantum Gates in Bipartite Systems
Journal of Mathematics
title Local Channels under Decomposition of Quantum Gates in Bipartite Systems
title_full Local Channels under Decomposition of Quantum Gates in Bipartite Systems
title_fullStr Local Channels under Decomposition of Quantum Gates in Bipartite Systems
title_full_unstemmed Local Channels under Decomposition of Quantum Gates in Bipartite Systems
title_short Local Channels under Decomposition of Quantum Gates in Bipartite Systems
title_sort local channels under decomposition of quantum gates in bipartite systems
url http://dx.doi.org/10.1155/2023/2130374
work_keys_str_mv AT yihuilao localchannelsunderdecompositionofquantumgatesinbipartitesystems
AT peiwang localchannelsunderdecompositionofquantumgatesinbipartitesystems
AT shanliliao localchannelsunderdecompositionofquantumgatesinbipartitesystems