Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Alessio Belfiglio"'
Publikováno v:
Physics Letters B, Vol 848, Iss , Pp 138398- (2024)
We investigate the ground state entanglement entropy of a massive scalar field nonminimally coupled to spacetime curvature, assuming a static, spherically symmetric background. We first discretize the field Hamiltonian by introducing a lattice of sph
Externí odkaz:
https://doaj.org/article/991274ba946240f0b0da03d9470cfe03
Publikováno v:
Classical and Quantum Gravity. 40:105004
We explore a toy model mechanism of geometric cancellation, alleviating the (classical) cosmological constant problem. To do so, we assume at primordial times that vacuum energy fuels an inflationary quadratic hilltop potential nonminimally coupled t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9986dc06ec7b68fc04b9784e066ceb26
https://doi.org/10.1088/1361-6382/accc00
https://doi.org/10.1088/1361-6382/accc00
We investigate the entanglement due to geometric corrections in particle creation during inflation. To do so, we propose a single-field inflationary scenario, nonminimally coupled to the scalar curvature of spacetime. We require particle production t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6f66c6a66c25d5ace046e4bba7d0eca
We investigate entanglement production by inhomogeneous perturbations over a homogeneous and isotropic cosmic background, demonstrating that the interplay between quantum and geometric effects can have relevant consequences on entanglement entropy, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c58028426f478b947faf9974a33f3dc
We study the entanglement production for Dirac and Klein-Gordon fields in an expanding spacetime characterized by the presence of torsion. Torsion is here considered according to the Einstein-Cartan theory with a conformally flat Friedmann-Robertson-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24a2f0e8c22996b7b5028c6637dd9988