activity
19922022
most citedClass of viable modified gravities describing inflation and the onset of accelerated expansion

890 citations · 7.5k across the 128 of their papers we have counts for

collaborators

130 papers

gr-qc2022★ 4 cited

Some remarks on non-singular spherically symmetric space-times

Lorenzo Sebastiani, Sergio Zerbini

A short review on spherically symmetric static regular black holes and spherically symmetric non singular cosmological space-time is presented. Several models of regular black hole…

gr-qc2020★ 21 cited

Non-Singular Black Holes and mass inflation in modified gravity

Manuel Bertipagani, Massimiliano Rinaldi, Lorenzo Sebastiani +1

We analytically derive a class of non-singular, static and spherically symmetric topological black hole metrics inF(R)-gravity. These have not a de Sitter core at their centre, as…

gr-qc2020★ 21 cited

Bounce Models within Teleparallel modified gravity

Alessandro Casalino, Bruno Sanna, Lorenzo Sebastiani +1

In this paper, working in a Friedman-Lemaitre-Robertson-Walker (FLRW), first, in the flat case, we recover the generalized Friedman equation of Quantum Loop cosmology, and therefor…

gr-qc2020★ 6 cited

A note on non singular Einstein-Aether cosmologies

Alessandro Casalino, Lorenzo Sebastiani, Sergio Zerbini

An effective Lagrangian approach based on an extended Einstein-Aether (EA) model is presented and formulated in a generic non flat Fridman-Lemaitre-Robertson-Walker (FLRW) space-ti…

gr-qc2019

Higher derivative and mimetic models on non flat FLRW space-times

Alessandro Casalino, Lorenzo Sebastiani, Luciano Vanzo +1

An effective Lagrangian approach, partly inspired by Quantum Loop Cosmology (QLC), is presented and formulated in a non flat FLRW space-times, making use of modified gravitational…

gr-qc2018★ 7 cited

On a WKB formula for echoes

L. Sebastiani, L. Vanzo, S. Zerbini

We present an unified approach for the study of idealized gravitational compact objects like wormholes and horizonless stars, here simulated by the presence of boundary conditions…