Non extremal geometries and holographic phase transitions

Abstract

Using the low energy limit of type IIB superstring theory, we obtain the non-extremal limit of deformed conifold geometry which is dual to the IR limit of large N thermal QCD.At low temperatures, the extremal geometry without black hole is favored while at high temperatures, the field theory is described by non-extremal black hole geometry. We compute the ten dimensional on shell action for extremal and non-extremal geometries and demonstrate that at a critical temperature $T_c$ there is a first order confinement to deconfinement phase transition. We compute $T_c$ as a function of 'tHooft coupling and study the thermodynamics of the dual gauge theory by evaluating the free energy and entropy of the ten dimensional geometry. We find agreement with the conformal limit while thermodynamics of non-conformal strongly coupled gauge theories is explored using the black hole geometries in non-AdS space.

There was an algebraic mistake in the earlier version, which has been corrected. This alters some factors in the critical horizon calculation but the physics remains unchanged

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Cited by in corpus (4)

• A UV complete model of Large N Thermal QCD
• Thermodynamics of large N gauge theory from top down holography
• Renormalization Group Flow, Stability, and Bulk Viscosity in a Large N Thermal QCD Model
• Vector Meson Spectrum from top-down Holographic QCD