Supremum of block entanglement for symmetric Gaussian states

Abstract For a system composed of permutationally symmetric Gaussian modes, by identifying the boundary of valid states and making necessary change of variables, the existence and exact value of the supremum of logarithmic negativity (and negativity likewise) between any two blocks can be shown anal...

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Autores principales: Jhih-Yuan Kao, Chung-Hsien Chou
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Lenguaje:EN
Publicado: Nature Portfolio 2018
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Acceso en línea:https://doaj.org/article/6e2c849a521e450983012ac770da192f
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spelling oai:doaj.org-article:6e2c849a521e450983012ac770da192f2021-12-02T16:08:26ZSupremum of block entanglement for symmetric Gaussian states10.1038/s41598-018-25781-22045-2322https://doaj.org/article/6e2c849a521e450983012ac770da192f2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25781-2https://doaj.org/toc/2045-2322Abstract For a system composed of permutationally symmetric Gaussian modes, by identifying the boundary of valid states and making necessary change of variables, the existence and exact value of the supremum of logarithmic negativity (and negativity likewise) between any two blocks can be shown analytically. Involving only the total number of interchangeable modes and the sizes of respective blocks, this result is general and easy to be applied for such a class of states.Jhih-Yuan KaoChung-Hsien ChouNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Jhih-Yuan Kao
Chung-Hsien Chou
Supremum of block entanglement for symmetric Gaussian states
description Abstract For a system composed of permutationally symmetric Gaussian modes, by identifying the boundary of valid states and making necessary change of variables, the existence and exact value of the supremum of logarithmic negativity (and negativity likewise) between any two blocks can be shown analytically. Involving only the total number of interchangeable modes and the sizes of respective blocks, this result is general and easy to be applied for such a class of states.
format article
author Jhih-Yuan Kao
Chung-Hsien Chou
author_facet Jhih-Yuan Kao
Chung-Hsien Chou
author_sort Jhih-Yuan Kao
title Supremum of block entanglement for symmetric Gaussian states
title_short Supremum of block entanglement for symmetric Gaussian states
title_full Supremum of block entanglement for symmetric Gaussian states
title_fullStr Supremum of block entanglement for symmetric Gaussian states
title_full_unstemmed Supremum of block entanglement for symmetric Gaussian states
title_sort supremum of block entanglement for symmetric gaussian states
publisher Nature Portfolio
publishDate 2018
url https://doaj.org/article/6e2c849a521e450983012ac770da192f
work_keys_str_mv AT jhihyuankao supremumofblockentanglementforsymmetricgaussianstates
AT chunghsienchou supremumofblockentanglementforsymmetricgaussianstates
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