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Hybrid fluid models from mutual effective metric couplings

  • Aleksi Kurkela
  • Ayan Mukhopadhyay
  • Florian Preis
  • Anton RebhanEmail author
  • Alexander Soloviev
Open Access
Regular Article - Theoretical Physics

Abstract

Motivated by a semi-holographic approach to the dynamics of quark-gluon plasma which combines holographic and perturbative descriptions of a strongly coupled infrared and a more weakly coupled ultraviolet sector, we construct a hybrid two-fluid model where interactions between its two sectors are encoded by their effective metric backgrounds, which are determined mutually by their energy-momentum tensors. We derive the most general consistent ultralocal interactions such that the full system has a total conserved energy-momentum tensor in flat Minkowski space and study its consequences in and near thermal equilibrium by working out its phase structure and its hydrodynamic modes.

Keywords

Holography and quark-gluon plasmas Quark-Gluon Plasma 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2018

Authors and Affiliations

  • Aleksi Kurkela
    • 1
    • 2
  • Ayan Mukhopadhyay
    • 3
    • 4
  • Florian Preis
    • 3
  • Anton Rebhan
    • 3
    Email author
  • Alexander Soloviev
    • 3
  1. 1.Theoretical Physics DepartmentCERNGenevaSwitzerland
  2. 2.Faculty of Science and TechnologyUniversity of StavangerStavangerNorway
  3. 3.Institut für Theoretische Physik, Technische Universität WienViennaAustria
  4. 4.Department of PhysicsIndian Institute of Technology MadrasChennaiIndia

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