2.1k citations · 11.9k across the 110 of their papers we have counts for
4 papers · 2 filters
Inside the Horizon with AdS/CFT
Per Kraus, Hirosi Ooguri, Stephen Shenker
Using the eternal BTZ black hole as a concrete example, we show how spacelike singularities and horizons can be described in terms of AdS/CFT amplitudes. Our approach is based on a…
Strings in the Extended BTZ Spacetime
Samuli Hemming, Esko Keski-Vakkuri, Per Kraus
We study string theory on the extended spacetime of the BTZ black hole, as described by an orbifold of the SL(2,R) WZW model. The full spacetime has an infinite number of disconnec…
Strings in Noncompact Spacetimes: Boundary Terms and Conserved Charges
Per Kraus, Anton Ryzhov, Masaki Shigemori
We study some of the novel properties of conformal field theories with noncompact target spaces as applied to string theory. Standard CFT results get corrected by boundary terms in…
Photons and Gravitons as Goldstone Bosons, and the Cosmological Constant
Per Kraus, E. T. Tomboulis
We reexamine a scenario in which photons and gravitons arise as Goldstone bosons associated with the spontaneous breaking of Lorentz invariance. We study the emergence of Lorentz i…