Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/41614
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Czinner, Viktor G. | por |
dc.contributor.author | Mena, Filipe C. | por |
dc.date.accessioned | 2016-05-16T14:57:15Z | - |
dc.date.available | 2016-05-16T14:57:15Z | - |
dc.date.issued | 2016-07 | - |
dc.date.submitted | 2015-11 | - |
dc.identifier.issn | 0370-2693 | por |
dc.identifier.uri | https://hdl.handle.net/1822/41614 | - |
dc.description.abstract | The necessary information to distinguish a local inhomogeneous mass density field from its spatial average on a compact domain of the universe can be measured by relative information entropy. The Kullback-Leibler (KL) formula arises very naturally in this context, however, it provides a very complicated way to compute the mutual information between spatially separated but causally connected regions of the universe in a realistic, inhomogeneous model. To circumvent this issue, by considering a parametric extension of the KL measure, we develop a simple model to describe the mutual information which is entangled via the gravitational field equations. We show that the Tsallis relative entropy can be a good approximation in the case of small inhomogeneities, and for measuring the independent relative information inside the domain, we propose the R\'enyi relative entropy formula. | por |
dc.description.sponsorship | Received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under the grant agreement No. PCOFUND-GA-2009-246542; from CMAT through FEDER Funds COMPETE, and also from FCT projects Est-OE/MAT/UI0013/2014, SFRH/BCC/105835/2014 and CERN/FP/123609/2011. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/135888/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBCC%2F105835%2F2014/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/123609/PT | por |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/246542/EU | - |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/123609/PT | - |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Cosmic inhomogeneities | por |
dc.subject | Information entropy | por |
dc.subject | Large scale structure | por |
dc.title | Relative information entropy in cosmology: The problem of information entanglement | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0370269316301162 | por |
sdum.publicationstatus | info:eu-repo/semantics/publishedVersion | por |
oaire.citationStartPage | 9 | por |
oaire.citationEndPage | 13 | por |
oaire.citationTitle | Physics Letters B | por |
oaire.citationVolume | 758 | por |
dc.identifier.doi | 10.1016/j.physletb.2016.04.043 | por |
dc.subject.fos | Ciências Naturais::Ciências Físicas | por |
dc.subject.fos | Ciências Naturais::Matemáticas | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Physics Letters B | por |
Aparece nas coleções: | CMAT - Artigos em revistas com arbitragem / Papers in peer review journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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PLB-published.pdf | 419,05 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons