Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Iosif Bena"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-24 (2024)
Abstract We consider coupled gravitational and electromagnetic perturbations of a family of five-dimensional Einstein-Maxwell solutions that describes both magnetized black strings and horizonless topological stars. We find that the odd perturbations
Externí odkaz:
https://doaj.org/article/1aa41d87e5fa4bafb97dca6b1beb2220
Autor:
Iosif Bena, Raphaël Dulac
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-20 (2024)
Abstract The entropy of the supersymmetric D2-D4-P black hole comes at weak coupling from D2-brane strips stretched between parallel D4 branes and carrying momentum waves. We use the DBI action of D4 branes to construct two pieces of plumbing that en
Externí odkaz:
https://doaj.org/article/4850dd6c236b452aa2e91516e87cae03
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-17 (2023)
Abstract Anti-D3 branes at the bottom of warped throats, commonly used to uplift the cosmological constant in String-Theory de Sitter proposals, source a plethora of supersymmetry-breaking fluxes, that can interact nontrivially with other ingredients
Externí odkaz:
https://doaj.org/article/03f154a04b2e4f84b344fa68a1593baf
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 3, Pp 1-26 (2023)
Abstract The entropy of the three-charge NS5-F1-P black hole in Type IIA string theory comes from the breaking of N 1 F1 strings into N 1 N 5 little strings, which become independent momentum carriers. In M theory, the little strings correspond to st
Externí odkaz:
https://doaj.org/article/cb387e4b32904b308bd139e0f5a615d6
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 10, Pp 1-39 (2022)
Abstract All known horizonless black-hole microstate geometries correspond to brane sources that acquire a finite size, and hence break the spherical symmetry of the black hole. We construct, for the first time, solutions with zero horizon area that
Externí odkaz:
https://doaj.org/article/56e781820fc44bdba510da603c621226
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-26 (2022)
Abstract D7-brane moduli are stabilized by worldvolume fluxes, which contribute to the D3-brane tadpole. We calculate this contribution in the Type IIB limit of F-theory compactifications on Calabi-Yau four-folds with a weak Fano base, and are able t
Externí odkaz:
https://doaj.org/article/bb529abdaea347808908fd1ad89dfa78
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 11, Pp 1-33 (2021)
Abstract We examine the mechanism of moduli stabilization by fluxes in the limit of a large number of moduli. We conjecture that one cannot stabilize all complex-structure moduli in F-theory at a generic point in moduli space (away from singularities
Externí odkaz:
https://doaj.org/article/0e3fef2e246f4f819960a261ec9c857e
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-49 (2021)
Abstract We construct a family of non-supersymmetric extremal black holes and their horizonless microstate geometries in four dimensions. The black holes can have finite angular momentum and an arbitrary charge-to-mass ratio, unlike their supersymmet
Externí odkaz:
https://doaj.org/article/02c41cdd13f04c6ea0d4a87583498cc4
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-63 (2021)
Abstract We compute the quasi-normal frequencies of scalars in asymptotically-flat microstate geometries that have the same charge as a D1-D5-P black hole, but whose long BTZ-like throat ends in a smooth cap. In general the wave equation is not separ
Externí odkaz:
https://doaj.org/article/746976c0acc34777a4f4fc2a15849ab2
Autor:
Iosif Bena, Daniel R. Mayerson
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-54 (2021)
Abstract We explain in detail how to calculate the gravitational mass and angular momentum multipoles of the most general non-extremal four-dimensional black hole with four magnetic and four electric charges. We also calculate these multipoles for ge
Externí odkaz:
https://doaj.org/article/c7bbd3375a74493ab13da22c2cf014aa