Mostrar el registro sencillo del ítem
dc.contributor.author
Agón, César A.
dc.contributor.author
Bueno, Pablo
dc.contributor.author
Casini, Horacio German
dc.date.available
2023-08-14T18:32:23Z
dc.date.issued
2021-08
dc.identifier.citation
Agón, César A. ; Bueno, Pablo; Casini, Horacio German; Is the EMI model a QFT? An inquiry on the space of allowed entropy functions; Springer; Journal of High Energy Physics; 2021; 8; 8-2021; 1-47
dc.identifier.issn
1029-8479
dc.identifier.uri
http://hdl.handle.net/11336/208213
dc.description.abstract
The mutual information I(A, B) of pairs of spatially separated regions satisfies, for any d-dimensional CFT, a set of structural physical properties such as positivity, monotonicity, clustering, or Poincaré invariance, among others. If one imposes the extra requirement that I(A, B) is extensive as a function of its arguments (so that the tripartite information vanishes for any set of regions, I3(A, B, C) ≡ 0), a closed geometric formula involving integrals over ∂A and ∂B can be obtained. We explore whether this “Extensive Mutual Information” model (EMI), which in fact describes a free fermion in d = 2, may similarly correspond to an actual CFT in general dimensions. Using the long-distance behavior of IEMI(A, B) we show that, if it did, it would necessarily include a free fermion, but also that additional operators would have to be present in the model. Remarkably, we find that IEMI(A, B) for two arbitrarily boosted spheres in general d exactly matches the result for the free fermion current conformal block G∆=(d−1),J=1d. On the other hand, a detailed analysis of the subleading contribution in the long-distance regime rules out the possibility that the EMI formula represents the mutual information of any actual CFT or even any limit of CFTs. These results make manifest the incompleteness of the set of known constraints required to describe the space of allowed entropy functions in QFT.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
CONFORMAL FIELD THEORY
dc.subject
FIELD THEORIES IN HIGHER DIMENSIONS
dc.subject
CFT
dc.subject.classification
Física de Partículas y Campos
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Is the EMI model a QFT? An inquiry on the space of allowed entropy functions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-08-14T17:37:11Z
dc.journal.volume
2021
dc.journal.number
8
dc.journal.pagination
1-47
dc.journal.pais
Alemania
dc.journal.ciudad
Berlín
dc.description.fil
Fil: Agón, César A.. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
dc.description.fil
Fil: Bueno, Pablo. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
dc.description.fil
Fil: Casini, Horacio German. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
dc.journal.title
Journal of High Energy Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/JHEP08(2021)084
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/JHEP08(2021)084
Archivos asociados