Cosmological horizons, Noether charges and entropy
Sign Up to like & getrecommendations! Published in 2019 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ab2e42
Abstract: It has recently been shown that, in the vicinity of their event horizons, black holes exhibit an infinite-dimensional symmetry. This symmetry captures relevant physical information about the black hole, and in particular about its thermodynamics.… read more here.
Keywords: entropy cosmological; black holes; noether charges; boundary conditions ... See more keywords
Entanglement entropy of cosmological perturbations for S-brane Ekpyrosis
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/03/094
Abstract: We calculate the entanglement entropy of scalar perturbations due to gravitational non-linearities present in any model of canonically-coupled, single-field ekpyrosis. Specifically, we focus on a recent model of improved ekpyrosis which is able to generate… read more here.
Keywords: entropy cosmological; perturbations brane; ekpyrosis; brane ekpyrosis ... See more keywords