25 citations · 43 across the 10 of their papers we have counts for
11 papers
Deriving effective descriptions and signal predictions for dynamical gravitational systems
Steven B. Giddings, Madhur Mehta
We investigate top-down derivations of effective descriptions of radiation from gravitational systems such as binaries. With a specified cutoff prescription, one can derive worldli…
Extreme Compactness, Extreme Gravity: Higher-Derivative Corrections to ECOs
Madhur Mehta
Higher-derivative gravity theories offer insights into the behavior of extremely compact objects (ECOs). Focusing on Gauss-Bonnet (GB) and Einstein-dilaton-Gauss-Bonnet (EdGB) grav…
The Fuzzball Paradigm
Samir D. Mathur, Madhur Mehta
We describe the puzzles that arise in the quantum theory of black holes, and explain how they are resolved in string theory. We review how the Bekenstein entropy is obtained throug…
The universal thermodynamic properties of Extremely Compact Objects
Samir D. Mathur, Madhur Mehta
An extremely compact object (ECO) is defined as a quantum object without horizon, whose radius is just a small distance outside its Schwarzschild radius. We show that any ECO o…
Electromagnetic Entrapment in Gravity
Pierre Heidmann, Madhur Mehta
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…
Lifting of superconformal descendants in the D1-D5 CFT
Marcel R. R. Hughes, Samir D. Mathur, Madhur Mehta
We consider D1-D5-P states in the untwisted sector of the D1-D5 orbifold CFT where we excite one copy of the seed CFT with a left-moving superconformal descendant. When the theory…
Lifting of two-mode states in the D1-D5 CFT
Marcel R. R. Hughes, Samir D. Mathur, Madhur Mehta
We consider D1-D5-P states in the untwisted sector of the D1-D5 orbifold CFT where one copy of the seed CFT has been excited by a pair of oscillators, each being either bosonic or…
The universality of black hole thermodynamics
Samir D. Mathur, Madhur Mehta
The thermodynamic properties of black holes -- temperature, entropy and radiation rates -- are usually associated with the presence of a horizon. We argue that any Extremely Compac…
Universal lifting in the D1-D5 CFT
Bin Guo, Marcel R. R. Hughes, Samir D. Mathur +1
We consider D1-D5-P states in the untwisted sector of the D1-D5 orbifold CFT where one copy of the seed CFT has been excited with a left-moving superconformal primary. Despite bein…
Redefining entanglement entropy -- can it solve the information paradox?
Madhur Mehta
Qubit Models which aim to resolve the information paradox must not redefine entanglement entropy as a redefinition does not address the correct issue of the information paradox. Th…
Contrasting the fuzzball and wormhole paradigms for black holes
Bin Guo, Marcel R. R. Hughes, Samir D. Mathur +1
We examine an interesting set of recent proposals describing a `wormhole paradigm' for black holes. These proposals require that in some effective variables, semiclassical low-ener…