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Analytic study of small scale structure on cosmic strings
- J. Polchinski, Jorge V. Rocha
- Physics
- 19 June 2006
The properties of string networks at scales well below the horizon are poorly understood, but they enter critically into many observables. We argue that in some regimes, stretching will be the only…
Scaling solution for small cosmic string loops.
- Jorge V. Rocha
- PhysicsPhysical review letters
- 20 September 2007
TLDR
Evaporation of large black holes in AdS: coupling to the evaporon
- Jorge V. Rocha
- Physics
- 1 April 2008
Large black holes in an asymptotically AdS spacetime have a dual de- scription in terms of approximately thermal states in the boundary CFT. The reect- ing boundary conditions of AdS prevent such…
Integrability of Five Dimensional Minimal Supergravity and Charged Rotating Black Holes
- P. Figueras, E. Jamsin, Jorge V. Rocha, Amitabh Virmani
- Physics
- 16 December 2009
We explore the integrability of five-dimensional minimal supergravity in the presence of three commuting Killing vectors. We argue that to see the integrability structure of the theory one…
Greybody factors for rotating black holes in higher dimensions
- R. Jorge, E. S. Oliveira, Jorge V. Rocha
- Physics
- 16 October 2014
We perform a thorough study of greybody factors for minimally-coupled scalar fields propagating on the background of rotating black holes (BHs) in higher (odd) dimensions with all angular momenta set…
Cosmic string structure at the gravitational radiation scale
- J. Polchinski, Jorge V. Rocha
- Physics
- 9 February 2007
We use our model of the small scale structure on cosmic strings to develop further the result of Siemens, Olum, and Vilenkin that the gravitational radiation length scale on cosmic strings is smaller…
Greybody factors for nonminimally coupled scalar fields in Schwarzschild–de Sitter spacetime
- L. Crispino, A. Higuchi, E. S. Oliveira, Jorge V. Rocha
- Physics
- 1 April 2013
We compute the greybody factors for non-minimally coupled scalar fields in four-dimensional Schwarzschild-de Sitter spacetime. In particular, we demonstrate that the zero-angular-momentum greybody…
Cosmic String Loops, Large and Small
- F. Dubath, J. Polchinski, Jorge V. Rocha
- Physics
- 7 November 2007
We extend our earlier model of the small-scale structure of cosmic string networks through an improved treatment of the separation of long and short scales. We find that the production of small loops…
Dynamical black holes in low-energy string theory
- P. Aniceto, Jorge V. Rocha
- Physics
- 21 March 2017
A bstractWe investigate time-dependent spherically symmetric solutions of the four-dimensional Einstein-Maxwell-axion-dilaton system, with the dilaton coupling that occurs in low-energy effective…
Evaporation of large black holes in AdS
- Jorge V. Rocha
- Physics
- 1 April 2010
The AdS/CFT correspondence offers a new perspective on the long-standing black hole information paradox. However, to be able to use the available gauge/gravity machinery one is forced to consider…
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