Holographic QCDNo Access

HOLOGRAPHY AND THE SPEED OF SOUND

PAUL M. HOHLER

Department of Physics, University of Illinois, Chicago, IL 60607-7059, USA

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and

MIKHAIL A. STEPHANOV

Department of Physics, University of Illinois, Chicago, IL 60607-7059, USA

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https://doi.org/10.1142/S0217751X10048743Cited by:0 (Source: Crossref)

Abstract

We study the approach of the speed of sound towards the value at high temperatures in a general class of strongly interacting theories. This class includes theories holographically dual to a theory of gravity coupled to a single scalar field, representing the operator of the scale anomaly. We show that quite universally the conformal value is approached from below and give a generic argument for why this has to be so.

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HOLOGRAPHY AND THE SPEED OF SOUND

Abstract

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