6 papers
Convergent sum of EFT corrections to Schwarzschild metric requires UV locality
Yang Liu, Alexey S. Koshelev, Anna Tokareva +1
Corrections to vacuum black hole solutions of general relativity (GR) are considered in an effective field theory (EFT) framework, perturbatively in EFT coefficients, focusing on t…
Scalar Quasinormal modes in Reissner--Nordström black holes: implications for Weak Gravity Conjecture
Giorgio Di Russo, Anna Tokareva
Microscopic charged black holes can provide possibilities to test the consistency of the effective field theory (EFT) corrections to Einstein-Maxwell theory. A particularly interes…
Energy conditions for regular black holes in EFT of gravity
Ziyue Zhu, Alexey S. Koshelev, Yang Liu +1
As Einstein's gravity is a non-renormalizable theory, it can be a good description of physics only at the scales of energy or spacetime curvature below the Planck mass. Moreover, i…
Quasi-normal modes in non-perturbative quantum gravity
Alexey S. Koshelev, Chenxuan Li, Anna Tokareva
Non-pertrubative quantum gravity formulated as a unitary four-dimensional theory suggests that certain amount of non-locality, such as infinite-derivative operators, can be present…
Secondary Gravitational Waves in Non-local Starobinsky inflation
Andrea Addazi, Alexey S. Koshelev, Shi Pi +1
We show how infinite derivative modifications of gravity impact on the stochastic background of Gravitational Waves from early Universe. The generic property of the ghost-free theo…
Non-perturbative quantum gravity denounces singular Black Holes
Alexey Koshelev, Anna Tokareva
Although General Relativity predicts the presence of a singularity inside of a Black Hole, it is not a complete theory of gravity. A real structure of a Black Hole interior near an…