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Non-linear sigma models with anti-de Sitter target spaces
Joshua J. Friess, Steven S. Gubser
We present evidence that there is a non-trivial fixed point for the AdS_{D+1} non-linear sigma model in two dimensions, without any matter fields or additional couplings beyond the…
Counter-examples to the correlated stability conjecture
Joshua J. Friess, Steven S. Gubser, Indrajit Mitra
We demonstrate explicit counter-examples to the Correlated Stability Conjecture (CSC), which claims that the horizon of a black brane is unstable precisely if that horizon has a th…
Phase transitions near black hole horizons
Steven S. Gubser
The Reissner-Nordstrom black hole in four dimensions can be made unstable without violating the dominant energy condition by introducing a real massive scalar with non-renormalizab…
Instabilities of D-brane Bound States and Their Related Theories
Joshua J. Friess, Steven S. Gubser
We investigate the Gregory-Laflamme instability for bound states of branes in type II string theory and in M-theory. We examine systems with two different constituent branes: for i…