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Ergotropy and entanglement in critical spin chains

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dc.contributor.authorMula, Begoña
dc.contributor.authorFernández, Julio J.
dc.contributor.authorSantalla, Silvia N.
dc.contributor.authorAlvarellos Bermejo, José Enrique
dc.contributor.authorGarcía Aldea, David
dc.contributor.authorRodríguez Laguna, Javier
dc.contributor.authorFernández Sánchez, Evamaría
dc.date.accessioned2024-05-20T11:28:13Z
dc.date.available2024-05-20T11:28:13Z
dc.date.issued2023-02-08
dc.description.abstractA subsystem of an entangled ground state (GS) is in a mixed state. Thus, if we isolate this subsystem from its surroundings, we may be able to extract work applying unitary transformations, up to a maximal amount which is called ergotropy. Once this work has been extracted, the subsystem will still contain some bound energy above its local GS, which can provide valuable information about the entanglement structure. We show that the bound energy for half a free fermionic chain decays as the square of the entanglement entropy divided by the chain length, thus approaching zero for large system sizes, and we conjecture that this relation holds for all one-dimensional critical states.en
dc.description.versionversión publicada
dc.identifier.doihttp://doi.org/10.1103/PhysRevB.107.075116
dc.identifier.urihttps://hdl.handle.net/20.500.14468/12055
dc.journal.titlePHYSICAL REVIEW B
dc.journal.volume107
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.centerFacultad de Ciencias
dc.relation.departmentFísica Fundamental
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.titleErgotropy and entanglement in critical spin chainses
dc.typejournal articleen
dc.typeartículoes
dspace.entity.typePublication
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relation.isAuthorOfPublication.latestForDiscovery8055eba2-53bf-4727-9498-d67c67cd42d8
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