Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Heidmann, Pierre"'
We construct asymptotically AdS$_3 \times$S$^3 \times$T$^4$ black holes that are localized on the S$^3$ and co-exist with the BTZ black hole at small positive energies. These black holes dominate the microcanonical ensemble for $ E\leq \frac{c}{24}\l
Externí odkaz:
http://arxiv.org/abs/2412.01885
Autor:
Dulac, Raphaël, Heidmann, Pierre
We demonstrate that the Schwarzschild black hole can be ``resolved'' into bound states of Reissner-Nordstr\"om black holes in four dimensions. These bound states closely resemble the Schwarzschild geometry from the asymptotic region up to an infinite
Externí odkaz:
http://arxiv.org/abs/2404.18994
Autor:
Heidmann, Pierre
We construct a regular bound state of two extremal black holes in type IIB supergravity with opposite charges. The bound state resembles the Schwarzschild black hole from the asymptotics to the photon ring and has the same mass and charges as the Sch
Externí odkaz:
http://arxiv.org/abs/2312.12496
Autor:
Heidmann, Pierre, Mehta, Madhur
We derive specific properties of electromagnetism when gravitational effects are not negligible and analyze their impact on new physics at the horizons of black holes. We show that a neutral configuration of charges in a region of high redshift, char
Externí odkaz:
http://arxiv.org/abs/2312.11607
We study scalar perturbations of topological solitons, smooth horizonless solutions in five-dimensional Einstein-Maxwell theory that correspond to coherent states of gravity via the dynamics of extra compact dimensions. First, we compute scalar quasi
Externí odkaz:
http://arxiv.org/abs/2305.14412
Autor:
Bah, Ibrahima, Heidmann, Pierre
We provide the first example of a geometric transition that resolves the Schwarzschild black hole into a smooth microstructure in eleven-dimensional supergravity on a seven-torus. The geometry is indistinguishable from a Schwarzschild black hole dres
Externí odkaz:
http://arxiv.org/abs/2303.10186
We study photon geodesics in topological solitons that have the same asymptotic properties as Schwarzschild black holes. These are coherent states in string theory corresponding to pure deformations of spacetime through the dynamics of compact extra
Externí odkaz:
http://arxiv.org/abs/2212.06837
Autor:
Heidmann, Pierre, Houppe, Anthony
We construct large families of supergravity solutions that are asymptotic to AdS$_2$ and terminate with a cap that is singular in two dimensions but smooth in higher dimensions. These solutions break supersymmetry and conformal invariance. We list ar
Externí odkaz:
http://arxiv.org/abs/2212.05065
Autor:
Bena, Iosif, Heidmann, Pierre
Almost all proposals to construct de Sitter vacua with a small cosmological constant involve flux compactifications with stabilized moduli. These give AdS vacua, which are uplifted to de Sitter by adding antibranes in certain regions of the compactif
Externí odkaz:
http://arxiv.org/abs/2212.04506
Autor:
Bah, Ibrahima, Heidmann, Pierre
We construct large classes of non-BPS smooth horizonless geometries that are asymptotic to AdS$_3\times$S$^3\times$T$^4$ in type IIB supergravity. These geometries are supported by electromagnetic flux corresponding to D1-D5 charges. We show that Ein
Externí odkaz:
http://arxiv.org/abs/2210.06483