Indrajit Mitra - Academia.edu (original) (raw)
Papers by Indrajit Mitra
Journal of High Energy Physics, 2005
… 2001: proceedings of …
Clay Mathematics Proceedings Volume 1, 2002 Instability of Charged Black Holes in Anti-de Sitter ... more Clay Mathematics Proceedings Volume 1, 2002 Instability of Charged Black Holes in Anti-de Sitter Space SS Gubser and I. Mitra We provide evidence that large anti-de Sitter Reissner-Nordstrom black holes in four dimensions are unstable. More precisely, there is a tachyon in the ...
We perform a one-loop calculation of the vacuum energy of a tachyon field in anti de-Sitter space... more We perform a one-loop calculation of the vacuum energy of a tachyon field in anti de-Sitter space with boundary conditions corresponding to the presence of a double-trace operator in the dual field theory. Such an operator can lead to a renormalization group flow between two different conformal field theories related to each other by a Legendre transformation in the large N limit. The calculation of the one-loop vacuum energy enables us to verify the holographic c-theorem one step beyond the classical supergravity approximation.
Journal of High Energy Physics, 2002
We demonstrate that AdS 5 × T pq is unstable, in the sense of Breitenlohner and Freedman, for une... more We demonstrate that AdS 5 × T pq is unstable, in the sense of Breitenlohner and Freedman, for unequal p and q. This settles, negatively, the long-standing question of whether the T pq manifolds for unequal p and q might correspond to non-supersymmetric fixed points of the renormalization group. We also show that the AdS 3 × S 7 vacuum of Sugimoto's USp(32) open string theory is unstable. This explains, at a heuristic level, the apparent absence of a heterotic string dual.
Physical Review D, 2005
We propose various ways of adding mass terms to three-dimensional twistor string theory. We begin... more We propose various ways of adding mass terms to three-dimensional twistor string theory. We begin with a review of mini-twistor space---the reduction of D=4 twistor space to D=3. We adapt the two proposals for twistor string theory, Witten's and Berkovits's, to D=3 super Yang-Mills theory. In Berkovits's model, we identify the enhanced R symmetry. We then construct B-model topological string
Journal of High Energy Physics, 2001
We examine the thermodynamic stability of large black holes in four-dimensional antide Sitter spa... more We examine the thermodynamic stability of large black holes in four-dimensional antide Sitter space, and we demonstrate numerically that black holes which lack local thermodynamic stability often also lack stability against small perturbations. This shows that no-hair theorems do not apply in anti-de Sitter space. A heuristic argument, based on thermodynamics only, suggests that if there are any violations of Cosmic Censorship in the evolution of unstable black holes in anti-de Sitter space, they are beyond the reach of a perturbative analysis.
Physical Review D, 2003
We perform a one-loop calculation of the vacuum energy of a tachyon field in antide Sitter space... more We perform a one-loop calculation of the vacuum energy of a tachyon field in antide Sitter space with boundary conditions corresponding to the presence of a double-trace operator in the dual field theory. Such an operator can lead to a renormalization group flow between two ...
Physical Review D, 2003
We perform a one-loop calculation of the vacuum energy of a tachyon field in antide Sitter space... more We perform a one-loop calculation of the vacuum energy of a tachyon field in antide Sitter space with boundary conditions corresponding to the presence of a double-trace operator in the dual field theory. Such an operator can lead to a renormalization group flow between two ...
Journal of High Energy Physics, 2005
… 2001: proceedings of …
Clay Mathematics Proceedings Volume 1, 2002 Instability of Charged Black Holes in Anti-de Sitter ... more Clay Mathematics Proceedings Volume 1, 2002 Instability of Charged Black Holes in Anti-de Sitter Space SS Gubser and I. Mitra We provide evidence that large anti-de Sitter Reissner-Nordstrom black holes in four dimensions are unstable. More precisely, there is a tachyon in the ...
We perform a one-loop calculation of the vacuum energy of a tachyon field in anti de-Sitter space... more We perform a one-loop calculation of the vacuum energy of a tachyon field in anti de-Sitter space with boundary conditions corresponding to the presence of a double-trace operator in the dual field theory. Such an operator can lead to a renormalization group flow between two different conformal field theories related to each other by a Legendre transformation in the large N limit. The calculation of the one-loop vacuum energy enables us to verify the holographic c-theorem one step beyond the classical supergravity approximation.
Journal of High Energy Physics, 2002
We demonstrate that AdS 5 × T pq is unstable, in the sense of Breitenlohner and Freedman, for une... more We demonstrate that AdS 5 × T pq is unstable, in the sense of Breitenlohner and Freedman, for unequal p and q. This settles, negatively, the long-standing question of whether the T pq manifolds for unequal p and q might correspond to non-supersymmetric fixed points of the renormalization group. We also show that the AdS 3 × S 7 vacuum of Sugimoto's USp(32) open string theory is unstable. This explains, at a heuristic level, the apparent absence of a heterotic string dual.
Physical Review D, 2005
We propose various ways of adding mass terms to three-dimensional twistor string theory. We begin... more We propose various ways of adding mass terms to three-dimensional twistor string theory. We begin with a review of mini-twistor space---the reduction of D=4 twistor space to D=3. We adapt the two proposals for twistor string theory, Witten's and Berkovits's, to D=3 super Yang-Mills theory. In Berkovits's model, we identify the enhanced R symmetry. We then construct B-model topological string
Journal of High Energy Physics, 2001
We examine the thermodynamic stability of large black holes in four-dimensional antide Sitter spa... more We examine the thermodynamic stability of large black holes in four-dimensional antide Sitter space, and we demonstrate numerically that black holes which lack local thermodynamic stability often also lack stability against small perturbations. This shows that no-hair theorems do not apply in anti-de Sitter space. A heuristic argument, based on thermodynamics only, suggests that if there are any violations of Cosmic Censorship in the evolution of unstable black holes in anti-de Sitter space, they are beyond the reach of a perturbative analysis.
Physical Review D, 2003
We perform a one-loop calculation of the vacuum energy of a tachyon field in antide Sitter space... more We perform a one-loop calculation of the vacuum energy of a tachyon field in antide Sitter space with boundary conditions corresponding to the presence of a double-trace operator in the dual field theory. Such an operator can lead to a renormalization group flow between two ...
Physical Review D, 2003
We perform a one-loop calculation of the vacuum energy of a tachyon field in antide Sitter space... more We perform a one-loop calculation of the vacuum energy of a tachyon field in antide Sitter space with boundary conditions corresponding to the presence of a double-trace operator in the dual field theory. Such an operator can lead to a renormalization group flow between two ...