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We show that a simple gravitational theory can provide a holographically dual description of a superconductor. There is a critical temperature, below which a charged condensate forms via a second order phase transition and the (dc) conductivity becomes infinite. The frequency dependent conductivity develops a gap determined by the condensate. We find(More)
We show that the E − S ∼ log S behaviour found for long strings rotating on AdS 5 × S 5 may be reproduced by membranes rotating on AdS 4 × S 7 and on a warped AdS 5 M-theory solution. We go on to obtain rotating membrane configurations with the same E − K ∼ log K relation on G 2 holonomy backgrounds that are dual to N = 1 gauge theories in four dimensions.(More)
We calculate the electrical and thermal conductivities and the thermoelectric coefficient of a class of strongly interacting 2+1 dimensional conformal field theories with anti-de Sitter space duals. We obtain these transport coefficients as a function of charge density, background magnetic field, temperature and frequency. We show that the thermal(More)
We initiate a holographic model building approach to 'strange metallic' phe-nomenology. Our model couples a neutral Lifshitz-invariant quantum critical theory , dual to a bulk gravitational background, to a finite density of gapped probe charge carriers, dually described by D-branes. In the physical regime of temperature much lower than the charge density(More)
We find explicit probe D3-brane solutions in the infrared of the Maldacena-Nuñez background. The solutions describe deformed baryon vertices: q external quarks are separated in spacetime from the remaining N − q. As the separation is taken to infinity we recover known solutions describing infinite confining strings in N = 1 gauge theory. We present results(More)
We derive an expression for functional determinants in thermal spacetimes as a product over the corresponding quasinormal modes. As simple applications we give efficient computations of scalar determinants in thermal AdS, BTZ black hole and de Sitter spacetimes. We emphasize the conceptual utility of our formula for discussing '1/N ' corrections to strongly(More)