Friday, September 21, 2012

1209.4484 (Mariano Cadoni et al.)

Hyperscaling violation for scalar black branes in arbitrary dimensions    [PDF]

Mariano Cadoni, Matteo Serra
We extend to black branes (BB) in arbitrary dimensions the results of Ref. [1] about hyperscaling violation and phase transition for scalar black 2-branes. We derive the analytic form of the (d+1)-dimensional scalar soliton interpolating between a conformal invariant AdS vacuum in the infrared and a scale covariant metric in the ultraviolet. We show that the thermodynamical system undergoes a phase transition between Schwarzschild-AdS and a scalar-dressed BB. We calculate the critical exponent and the hyperscaling violation parameter in the two phases. We show that our scalar BB solutions generically emerge as compactifications of p-brane solutions of supergravity theories. We also derive the short distance form of the correlators for scalar operators in the dual QFT for negative hyperscaling violation parameter and show that it has a power-law behavior.
View original: http://arxiv.org/abs/1209.4484

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