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Gauge/gravity dualities and bulk phase transitions

Anton F. Faedo1, Maurizio Piai2, and Daniel Schofield2

  • 1Departament de Física Fonamental & Institut de Ciències del Cosmos, Universitat de Barcelona, Martí i Franquès 1, E-08028 Barcelona, Spain
  • 2Department of Physics, College of Science, Swansea University, Singleton Park, Swansea SA2 8PP, Wales, United Kingdom

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Phys. Rev. D 89, 106001 – Published 2 May, 2014

DOI: https://doi.org/10.1103/PhysRevD.89.106001

Abstract

We consider D7-branes probing several classes of Type IIB supergravity backgrounds, and study the classical problem of finding equilibrium configurations for the embedding functions. This is a method employed to model chiral symmetry breaking in the gravity dual of a strongly coupled, confining gauge theory. We unveil and discuss a new type of phase transition appearing in the gravity systems, which is similar in nature and meaning to bulk phase transitions on the lattice. The existence of this genre of phase transition puts a new, intrinsic limit on the region of parameter space which can be used to study the physics of the dual field theory. We complete the analysis of D7 embeddings in wrapped-D5 supergravity backgrounds, and explain in what cases chiral-symmetry breaking is sensibly modeled by the gravity construction.

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Phys. Rev. D 89, 106001– Published 2 May, 2014
  • Received 24 February 2014

© 2014 American Physical Society

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