Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Consoli, Dario"'
Using conformal field theory and localization tecniques we study the propagation of waves in gravity backgrounds described by Schr\"odinger like equations with Fuchsian singularities. Exact formulae for the connection matrices relating the asymptotic
Externí odkaz:
http://arxiv.org/abs/2206.09437
We analyse the perturbative four-point amplitudes in the simplest string theory examples of T-fold backgrounds, which enjoy N=6 supersymmetries in four dimensions. There are two theories defined as asymmetric orbifolds of order 2 and 3, respectively.
Externí odkaz:
http://arxiv.org/abs/2203.15130
We exploit the recently proposed correspondence between gravitational perturbations and quantum Seiberg-Witten curves to compute the spectrum of quasi-normal modes of asymptotically flat Kerr Newman black holes and establish detailed gauge/gravity di
Externí odkaz:
http://arxiv.org/abs/2109.09804
QNMs govern the linear response to perturbations of BHs, D-branes and fuzzballs and the gravitational wave signals in the ring-down phase of binary mergers. A remarkable connection between QNMs of neutral BHs in 4d and quantum SW geometries describin
Externí odkaz:
http://arxiv.org/abs/2105.04245
Autor:
Ikeda, Taishi, Bianchi, Massimo, Consoli, Dario, Grillo, Alfredo, Morales, Josè Francisco, Pani, Paolo, Raposo, Guilherme
Publikováno v:
Phys. Rev. D 104, 066021 (2021)
Deep conceptual problems associated with classical black holes can be addressed in string theory by the ``fuzzball'' paradigm, which provides a microscopic description of a black hole in terms of a thermodynamically large number of regular, horizonle
Externí odkaz:
http://arxiv.org/abs/2103.10960
We study massless geodesics near the photon-spheres of a large family of solutions of Einstein-Maxwell theory in five dimensions, including BHs, naked singularities and smooth horizon-less JMaRT geometries obtained as six-dimensional uplifts of the f
Externí odkaz:
http://arxiv.org/abs/2011.04344
The mixing of graviphotons and dark brane photons to the Standard Model hypercharge is analyzed in full generality, in weakly-coupled string theory. Both the direct mixing as well as effective terms that provide mixing after inclusion of SM correctio
Externí odkaz:
http://arxiv.org/abs/2010.07320
Autor:
Bianchi, Massimo, Consoli, Dario, Grillo, Alfredo, Morales, Jose Francisco, Pani, Paolo, Raposo, Guilherme
We extend and refine a general method to extract the multipole moments of arbitrary stationary spacetimes and apply it to the study of a large family of regular horizonless solutions to $ {\cal N}{\,=\,}2$ four-dimensional supergravity coupled to fou
Externí odkaz:
http://arxiv.org/abs/2008.01445
Autor:
Bianchi, Massimo, Consoli, Dario, Grillo, Alfredo, Morales, Josè Francisco, Pani, Paolo, Raposo, Guilherme
Within General Relativity, the unique stationary solution of an isolated black hole is the Kerr spacetime, which has a peculiar multipolar structure depending only on its mass and spin. We develop a general method to extract the multipole moments of
Externí odkaz:
http://arxiv.org/abs/2007.01743
We reconsider a modification of the N-point amplitude of the Neveu-Schwarz (NS) model in which the tachyon becomes a pion by shifting its mass to zero and keeping the super-projective invariance of the integrand of the amplitude. For the scattering o
Externí odkaz:
http://arxiv.org/abs/2002.05419