Results 31 to 40 of about 7,281 (260)
The multipolar structure of fuzzballs
Journal of High Energy Physics, 2021 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 N $$ \mathcal{N} $$ = 2 four-dimensional supergravity coupled to ...
Massimo Bianchi +5 more
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Gravitational footprints of black holes and their microstate geometries
Journal of High Energy Physics, 2021 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 supersymmetric cousins ...
Ibrahima Bah +4 more
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BLACK HOLE GEOMETRIES IN NONCOMMUTATIVE STRING THEORY [PDF]
International Journal of Modern Physics A, 2006 We obtain a generalized Schwarzschild (GS) and a generalized Reissner–Nordstrom (GRN) black hole geometries in 3+1 dimensions, in a noncommutative string theory. In particular, we consider an effective theory of gravity on a curved D3-brane in presence of an electromagnetic (EM) field.
Kar, Supriya, Majumdar, Sumit
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Absorption versus decay of black holes in string theory and T-symmetry [PDF]
, 1996 Classically a black hole can absorb but not emit energy. We discuss how this T-asymmetric property of black holes arises in the recently proposed (T-symmetric) microscopic models of black holes based on bound states of D-branes.
A. Dhar, G. Mandal, S. Wadia
semanticscholar +1 more source
Black holes lessons from multipole ratios
Journal of High Energy Physics, 2021 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.
Iosif Bena, Daniel R. Mayerson
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Thermodynamic geometry and extremal black holes in string theory [PDF]
, 2008 We study a generalisation of thermodynamic geometry to degenerate quantum ground states at zero temperatures exemplified by charged extremal black holes in type II string theories.
T. Sarkar, Gautam Sengupta, B. N. Tiwari
semanticscholar +1 more source
Accelerating black holes in the low energy heterotic string theory [PDF]
Physics Letters B, 2018 We present a new solution describing a pair of rotating, charged, and accelerating black holes in the low energy limit of heterotic string theory. To obtain the solution, we apply the Hassan–Sen transformation to the neutral accelerating Kerr spacetime ...
H. M. Siahaan
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Islands in linear dilaton black holes
Journal of High Energy Physics, 2021 We derive a novel four-dimensional black hole with planar horizon that asymptotes to the linear dilaton background. The usual growth of its entanglement entropy before Page’s time is established.
Georgios K. Karananas +2 more
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Shadows of 5D black holes from string theory [PDF]
Physics Letters B, 2020 We study the shadow behaviors of five dimensional (5D) black holes embedded in type IIB superstring/supergravity inspired spacetimes by considering solutions with and without rotations.
A. Belhaj +5 more
semanticscholar +1 more source
Black holes and solitons in string theory [PDF]
Physics Reports, 1999 We review various aspects of classical solutions in string theories. Emphasis is placed on their supersymmetry properties, their special roles in string dualities and microscopic interpretations. Topics include black hole solutions in string theories on tori and N=2 supergravity theories; p-branes; microscopic interpretation of black hole entropy.
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