Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Jorge E. Santos"'
Autor:
Jorge E. Santos, Yoav Zigdon
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-28 (2024)
Abstract In the context of the black hole/string transition, it is useful to produce Euclidean string backgrounds representing hot and self-gravitating strings. We utilise analytical and numerical methods to find a smooth, stationary rotating solutio
Externí odkaz:
https://doaj.org/article/37f4f5f50ad440a899b257e1dd2940c4
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-60 (2024)
Abstract We derive gravitational backgrounds that are asymptotically Anti-de Sitter, have a regular black hole horizon and which deep in the interior exhibit mixmaster chaotic dynamics. The solutions are obtained by coupling gravity with a negative c
Externí odkaz:
https://doaj.org/article/302527f312974dadac52a248ba7c3923
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-80 (2024)
Abstract We consider four-dimensional Euclidean gravity in a finite cavity. Dirichlet conditions do not yield a well-posed elliptic system, and Anderson has suggested boundary conditions that do. Here we point out that there exists a one-parameter fa
Externí odkaz:
https://doaj.org/article/84caa615e54a49269987d92d3b12565c
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-36 (2024)
Abstract Due to the conformal factor problem, the definition of the Euclidean gravitational path integral requires a non-trivial choice of contour. The present work examines a generalization of a recently proposed rule-of-thumb [1] for selecting this
Externí odkaz:
https://doaj.org/article/1c5e56063ace48b09c48414173f457af
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-51 (2024)
Abstract It was recently shown that (near-)extremal Kerr black holes are sensitive probes of small higher-derivative corrections to general relativity. In particular, these corrections produce diverging tidal forces on the horizon in the extremal lim
Externí odkaz:
https://doaj.org/article/f1a2e53bae424bab84f47ebd1f1b2df7
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-62 (2023)
Abstract Recent studies of the gravito-electromagnetic frequency spectra of Kerr-Newman (KN) black holes have revealed two families of quasinormal modes (QNMs), namely photon sphere modes and near-horizon modes. However, they can only be unambiguousl
Externí odkaz:
https://doaj.org/article/e6b62fceede14a95b2d75f01a6e3ab53
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-105 (2023)
Abstract We do a systematic search of supergravity solutions that, via the AdS5/CFT4 correspondence, are dual to thermal states in N $$ \mathcal{N} $$ = 4 SYM at finite chemical potential. These solutions dominate the microcanonical ensemble and are
Externí odkaz:
https://doaj.org/article/489f9b49b09546dda15e5c4d6fd26a20
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-55 (2023)
Abstract We construct a cohomogeneity-1 helical black string in six-dimensional Einstein gravity. The helical solution branches from the onset of the gravitational superradiant instability of the equal-spinning Myers-Perry black string. The isometry
Externí odkaz:
https://doaj.org/article/45f962b85cdd4c06b53266848d0bec27
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-41 (2023)
Abstract In holography, the IR behavior of a quantum system at nonzero density is described by the near horizon geometry of an extremal charged black hole. It is commonly believed that for systems on S 3, this near horizon geometry is AdS2 × S 3. We
Externí odkaz:
https://doaj.org/article/a31bce39580a471e931525831f1f6822
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-35 (2023)
Abstract We construct novel black strings that are neither time-translation invariant, nor axisymmetric, nor translationally invariant in the string direction, but nevertheless have a helical Killing vector field. These solutions branch from the supe
Externí odkaz:
https://doaj.org/article/c54c8d45f25b40a98b7aafdacc3b9fda