1.4k citations · 14.9k across the 138 of their papers we have counts for
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From p-branes to fluxbranes and back
Roberto Emparan, Michael Gutperle
In this note we study aspects of the interplay between fluxbranes and p-branes. We describe how a fluxbrane can be physically realized as a limit of a brane-antibrane configuration…
A rotating black ring in five dimensions
Roberto Emparan, Harvey S. Reall
The vacuum Einstein equations in five dimensions are shown to admit a solution describing an asymptotically flat spacetime regular on and outside an event horizon of topology S^1 x…
Generalized Weyl Solutions
Roberto Emparan, Harvey S. Reall
It was shown by Weyl that the general static axisymmetric solution of the vacuum Einstein equations in four dimensions is given in terms of a single axisymmetric solution of the La…
Cosmic Rays as Probes of Large Extra Dimensions and TeV Gravity
Roberto Emparan, Manuel Masip, Riccardo Rattazzi
If there are large extra dimensions and the fundamental Planck scale is at the TeV scale, then the question arises of whether ultra-high energy cosmic rays might probe them. We stu…
String Balls at the LHC and Beyond
Savas Dimopoulos, Roberto Emparan
In string theory, black holes have a minimum mass below which they transition into highly excited long and jagged strings --- ``string balls''. These are the stringy progenitors of…
Supergravity Supertubes
Roberto Emparan, David Mateos, Paul Townsend
We find the supergravity solution sourced by a supertube: a (1/4)-supersymmetric D0-charged IIA superstring that has been blown up to a cylindrical D2-brane by angular momentum. Th…