44 citations · 216 across the 15 of their papers we have counts for
6 papers · 1 filter
Quantum ergosphere and brick wall entropy
Michele Arzano, Lennart Brocki, Jerzy Kowalski-Glikman +2
We revisit the "brick wall" model for black hole entropy taking into account back-reaction effects on the horizon structure. We do so by adopting an evaporating metric in the quasi…
On the Entanglement Entropy of Quantum Fields in Causal Sets
Alessio Belenchia, Dionigi M. T. Benincasa, Marco Letizia +1
In order to understand the detailed mechanism by which a fundamental discreteness can provide a finite entanglement entropy, we consider the entanglement entropy of two classes of…
Deformed relativity symmetries and the local structure of spacetime
Marco Letizia, Stefano Liberati
A spacetime interpretation of deformed relativity symmetry groups was recently proposed by resorting to Finslerian geometries, seen as the outcome of a continuous limit endowed wit…
Higher-order theories of gravity: diagnosis, extraction and reformulation via non-metric extra degrees of freedom
Alessio Belenchia, Marco Letizia, Stefano Liberati +1
Modifications of Einstein's theory of gravitation have been extensively considered in the past years, in connection to both cosmology and quantum gravity. Higher-curvature and high…
Phenomenology of effective geometries from quantum gravity
Ricardo Gallego Torromé, Marco Letizia, Stefano Liberati
In a recent paper (arXiv:1412.6000) a general mechanism for emergence of cosmological space-time geometry from a quantum gravity setting was devised and departure from standard dis…
Localization and diffusion in polymer quantum field theory
Michele Arzano, Marco Letizia
Polymer quantization is a non-standard approach to quantizing a classical system inspired by background independent approaches to quantum gravity such as loop quantum gravity. When…