Stronger Quantum Speed Limit for Mixed Quantum States

In this paper, we derive a quantum speed limit for unitary evolution for the case of mixed quantum states using the stronger uncertainty relation for mixed quantum states. This bound can be optimized over different choices of Hermitian operators for a better bound. We illustrate this with some examp...

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Detalles Bibliográficos
Autores principales: Bagchi, Shrobona, Thakuria, Dimpi, Pati, Arun Kumar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10378640/
https://www.ncbi.nlm.nih.gov/pubmed/37509993
http://dx.doi.org/10.3390/e25071046
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author Bagchi, Shrobona
Thakuria, Dimpi
Pati, Arun Kumar
author_facet Bagchi, Shrobona
Thakuria, Dimpi
Pati, Arun Kumar
author_sort Bagchi, Shrobona
collection PubMed
description In this paper, we derive a quantum speed limit for unitary evolution for the case of mixed quantum states using the stronger uncertainty relation for mixed quantum states. This bound can be optimized over different choices of Hermitian operators for a better bound. We illustrate this with some examples and show its better performance with respect to three existing bounds for mixed quantum states.
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spelling pubmed-103786402023-07-29 Stronger Quantum Speed Limit for Mixed Quantum States Bagchi, Shrobona Thakuria, Dimpi Pati, Arun Kumar Entropy (Basel) Article In this paper, we derive a quantum speed limit for unitary evolution for the case of mixed quantum states using the stronger uncertainty relation for mixed quantum states. This bound can be optimized over different choices of Hermitian operators for a better bound. We illustrate this with some examples and show its better performance with respect to three existing bounds for mixed quantum states. MDPI 2023-07-12 /pmc/articles/PMC10378640/ /pubmed/37509993 http://dx.doi.org/10.3390/e25071046 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bagchi, Shrobona
Thakuria, Dimpi
Pati, Arun Kumar
Stronger Quantum Speed Limit for Mixed Quantum States
title Stronger Quantum Speed Limit for Mixed Quantum States
title_full Stronger Quantum Speed Limit for Mixed Quantum States
title_fullStr Stronger Quantum Speed Limit for Mixed Quantum States
title_full_unstemmed Stronger Quantum Speed Limit for Mixed Quantum States
title_short Stronger Quantum Speed Limit for Mixed Quantum States
title_sort stronger quantum speed limit for mixed quantum states
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10378640/
https://www.ncbi.nlm.nih.gov/pubmed/37509993
http://dx.doi.org/10.3390/e25071046
work_keys_str_mv AT bagchishrobona strongerquantumspeedlimitformixedquantumstates
AT thakuriadimpi strongerquantumspeedlimitformixedquantumstates
AT patiarunkumar strongerquantumspeedlimitformixedquantumstates

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