Please use this identifier to cite or link to this item:
Title: Entanglement of self interacting scalar fields in an expanding spacetime.
Authors: Costa, Helder Alexander Santos
Souza, Gustavo Henrique Costa de
Mansfield, Paul
Paz, Irismar Gonçalves da
Sampaio, Marcos Donizeti Rodrigues
Issue Date: 2016
Citation: COSTA, H. A. S. et al. Entanglement of self interacting scalar fields in an expanding spacetime. Europhysics Letters, v. 115, p. 1-6, 2016. Disponível em: <>. Acesso em: 16 jan. 2018.
Abstract: We evaluate self-interaction effects on the quantum correlations of field modes of opposite mo- menta for scalar λφ4 theory in a two-dimensional asymptotically flat Robertson-Walker spacetime. Such correlations are encoded both in the von-Neumann entropy defined through the reduced den- sity matrix in one of the modes and in the covariance expressed in terms of the expectation value of the number operators for each mode in the evolved state. The entanglement between field modes carries information about the underlying spacetime evolution.
ISSN: 1286-4854
Appears in Collections:DEMAT - Artigos publicados em periódicos

Files in This Item:
File Description SizeFormat 
  Restricted Access
197,86 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.