RT Journal Article
T1 Timelike information broadcasting in cosmology
A1 Blasco, Ana
A1 Garay Elizondo, Luis Javier
A1 Martín Benito, Mercedes
A1 Martín-Martínez, Eduardo
AB We study the transmission of information and correlations through quantum fields in cosmological backgrounds. With this aim, we make use of quantum information tools to quantify the classical and quantum correlations induced by a quantum massless scalar field in two particle detectors, one located in the early universe (Alice’s) and the other located at a later time (Bob’s). In particular, we focus on two phenomena: (a) the consequences on the transmission of information of the violations of the strong Huygens principle for quantum fields, and (b) the analysis of the field vacuum correlations via correlation harvesting from Alice to Bob. We will study a standard cosmological model first and then assess whether these results also hold if we use other than the general relativistic dynamics. As a particular example, we will study the transmission of information through the big bounce, that replaces the big bang, in the effective dynamics of loop quantum cosmology.
PB American Physical Society
SN 2470-0010
YR 2016
FD 2016
LK https://hdl.handle.net/20.500.14352/99264
UL https://hdl.handle.net/20.500.14352/99264
LA eng
NO Blasco, Ana, et al. «Timelike Information Broadcasting in Cosmology». Physical Review D, vol. 93, n.o 2, enero de 2016, p. 024055. DOI.org (Crossref), https://doi.org/10.1103/PhysRevD.93.024055.
NO Ministerio de Ciencia e Innovación (España)
NO Ministerio de Economía y Competitividad (España)
NO Netherlands Organization for Scientific Research
NO Natural Sciences and Engineering Research Council of Canada
DS Docta Complutense
RD 6 abr 2025