High Energy Theory Seminar
Locally Localized Gravity in String Theory
Localized gravity is the idea of obtaining an effective 4D gravitational theory from higher-dimensions without compactification. This is done by localizing a set of gravitational degrees of freedom along a 4D submanifold (brane-world), while the coupling of the brane-world to the remaining gravitational degrees of freedom is suppressed. A realization in classical gravity was given by A. Karch and L. Randall by inserting an AdS_4 brane-source into AdS_5. I will discuss an embedding of this scenario into string theory by inserting
D5- and NS5-branes into the near horizon geometry of D3-branes. In particular, the backreacted solutions are presented and analyzed. Novel AdS_4 geometries relevant to gravity localization are found. I will also discuss their relation to 3D SCFTs.
Date & Time
December 02, 2011 | 1:30pm – 3:00pm
Location
Jadwin Hall, Room A08Speakers
John Estes
Affiliation
University of Leuven, Belgium