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26 papers · 2 filters
Linearized Israel Matching Conditions for Cosmological Perturbations in a Moving Brane Background
Martin Bucher, Carla Carvalho
With a view toward the problem of computing the linearized cosmological perturbations in Randall-Sundrum cosmological models where a Z2 symmetry has been imposed about a boundary b…
Non-supersymmetric black rings as thermally excited supertubes
Henriette Elvang, Roberto Emparan, Pau Figueras
We construct a seven-parameter family of supergravity solutions that describe non-supersymmetric black rings and black tubes with three charges, three dipoles and two angular momen…
When conceptual worlds collide: The GUP and the BH entropy
A. J. M. Medved, Elias C. Vagenas
Recently, there has been much attention devoted to resolving the quantum corrections to the Bekenstein--Hawking (black hole) entropy. In particular, many researchers have expressed…
Search for the most stable massive state in superstring theory
Diego Chialva, Roberto Iengo, Jorge G. Russo
In ten dimensional type II superstring, all perturbative massive states are unstable, typically with a short lifetime compared to the string scale. We find that the lifetime of the…
Effects of D-instantons in string amplitudes
Jorge G. Russo
We investigate the different energy regimes in the conjectured SL(2,Z) invariant four graviton scattering amplitude that incorporates D-instanton contributions in 10d type IIB supe…
Rotating Solutions of Non-relativistic String Theory
Joaquim Gomis, Filippo Passerini
We construct classical rotating solutions of Non-relativistic String Theory. The relation among the energy and angular momenta for these solutions is of the type E=J^2. Some of the…