Thermodynamics and instabilities of a strongly coupled anisotropic plasma

By D. Mateos, Diego Trancanelli. 2011

214 citations recorded by the source corpus.

We extend our analysis of a IIB supergravity solution dual to a spatially anisotropic finite-temperature $ \mathcal{N} = 4 $ super Yang-Mills plasma. The solution is static, possesses an anisotropic horizon, and is completely regular. The full geometry can be viewed as a renormalization group flow from an AdS geometry in the ultraviolet to a Lifshitz-like geometry in the infrared. The anisotropy can be equivalently understood as resulting from a position-dependent θ-term or from a non-zero number density of dissolved D7-branes. The holographic stress tensor is conserved and anisotropic. The presence of a conformal anomaly plays an important role in the thermodynamics. The phase diagram exhibits homogeneous and inhomogeneous (i.e. mixed) phases. In some regions the homogeneous phase displays instabilities reminiscent of those of weakly coupled plasmas. We comment on similarities with QCD at finite baryon density and with the phenomenon of cavitation.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/eab9e2e050f073ae1388c005b3356890cf3fa4b4

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In Astronomy and Astrophysics

  1. Aristomenis Donos
  2. J. Gauntlett
  3. Ioannis Papadimitriou
  4. Blaise Goutéraux
  5. Marika Taylor
  6. R. Davison
  7. Kostas Skenderis
  8. J. Hartong

In Nuclear and High Energy Physics

  1. Aristomenis Donos
  2. J. Gauntlett
  3. Blaise Goutéraux
  4. Ioannis Papadimitriou
  5. Marika Taylor
  6. R. Davison
  7. S. Hartnoll
  8. Kostas Skenderis

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