17 citations · 45 across the 13 of their papers we have counts for
16 papers
Worldsheet string theory on
Lorenz Eberhardt, Matthias R. Gaberdiel, Sameer Murthy +1
The RNS formalism describing string theory on supported by pure NS-NS flux is in principle straightforward to write down. On…
Gravitational index of the D1-D5-P black string
Silvia Georgescu, Sameer Murthy, Andrew Svesko
We present saddle-points of the Euclidean Gravitational Path Integral (GPI) corresponding to the supersymmetric index of the D1-D5-P black string. These saddles are complex, supers…
Allowable complex metrics and the gravitational index of AdS black holes
Pietro Benetti Genolini, Oliver Janssen, Sameer Murthy
We discuss the Kontsevich-Segal-Witten criterion for the allowability of complex metrics, in the context of the gravitational path integral that calculates the supersymmetric index…
Novel black saddles for 5d gravitational indices and the index enigma
Jan Boruch, Roberto Emparan, Luca V. Iliesiu +1
We construct a series of novel Euclidean multi-black-hole, black ring, black Saturn, and black lens solutions to supergravity that contribute as saddle-points to the grav…
Multicentered black hole saddles for supersymmetric indices
Jan Boruch, Luca V. Iliesiu, Sameer Murthy +1
The supersymmetric index in string theory can sometimes have a discontinuous integer-valued jump at co-dimension one surfaces in moduli space called walls of marginal stability. Wh…
Localization of strings on group manifolds
Sameer Murthy, Edward Witten
We compute the partition function of the WZW model with target a compact Lie group by adapting a method used by Choi and Takhtajan to compute the heat kernel of the group manif…
Strings and near-extremal black holes in theories with large superconformal symmetry
Sameer Murthy, Mukund Rangamani
We study the one-loop partition function of superstrings in the background. Specifically, we show that…
The gravitational index and allowable complex metrics
Pietro Benetti Genolini, Sameer Murthy
We study the Kontsevich-Segal-Witten criterion for allowable complex metrics, in the context of the gravitational path integral corresponding to the supersymmetric index. In variou…
Quantum black holes: supersymmetry and exact results
Davide Cassani, Sameer Murthy
The explanation of black hole entropy as statistical entropy is one of the big successes of string theory. In this article we review recent progress in this subject, focussing on u…
Localization and wall-crossing of giant graviton expansions in AdS
Giorgos Eleftheriou, Sameer Murthy, Martí Rosselló
The -BPS indices of Super Yang-Mills theory with unitary, orthogonal, and symplectic groups all admit -expansions suggesting an interpretation in terms…
The gravitational index of 5d black holes and black strings
Jan Boruch, Roberto Emparan, Luca V. Iliesiu +1
The supersymmetric index of 5d black strings and spinning black holes in M-theory is related to that of 4d black holes in type IIA supergravity when both theories are compactified…
Strings in AdS: one-loop partition function and near-extremal BTZ thermodynamics
Christian Ferko, Sameer Murthy, Mukund Rangamani
We revisit the computation of the string partition function in AdS focussing on the appearance of spacetime (super) symmetries. We show how the asymptotic symmetries of the AdS…
Gravitational index of the heterotic string
Yiming Chen, Sameer Murthy, Gustavo J. Turiaci
The fundamental heterotic string has a tower of BPS states whose supersymmetric index has an exponential growth in the charges. We construct the saddle-point of the gravitational p…
The giant graviton expansion in
Giorgos Eleftheriou, Sameer Murthy, Martí Rosselló
The superconformal index of -BPS states of U(N) super Yang-Mills theory has a known infinite -series expression with successive terms suppressed by . We deri…
New forms of attraction: Attractor saddles for the black hole index
Jan Boruch, Luca V. Iliesiu, Sameer Murthy +1
The count of microstates for supersymmetric black holes is typically obtained from a supersymmetric index in weakly-coupled string theory. We find the saddles in the gravitational…
Black hole microstate counting from the gravitational path integral
Luca V. Iliesiu, Sameer Murthy, Gustavo J. Turiaci
Reproducing the integer count of black hole micro-states from the gravitational path integral is an important problem in quantum gravity. In this paper, we show that, by using supe…