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Consistent holographic description of boost-invariant plasma

Michal P. Heller, R. Loganayagam, Michal Spalinski, Piotr Surowka, Samuel E. Vazquez

TL;DR

The calculations presented correctly reproduce the plasma energy-momentum tensor within the framework of second-order viscous hydrodynamics.

Abstract

Prior attempts to construct the gravity dual of boost-invariant flow of N=4 supersymmetric Yang-Mills gauge theory plasma suffered from apparent curvature singularities in the late time expansion. This Letter shows how these problems can be resolved by a different choice of expansion parameter. The calculations presented correctly reproduce the plasma energy-momentum tensor within the framework of second order viscous hydrodynamics.

Consistent holographic description of boost-invariant plasma

TL;DR

The calculations presented correctly reproduce the plasma energy-momentum tensor within the framework of second-order viscous hydrodynamics.

Abstract

Prior attempts to construct the gravity dual of boost-invariant flow of N=4 supersymmetric Yang-Mills gauge theory plasma suffered from apparent curvature singularities in the late time expansion. This Letter shows how these problems can be resolved by a different choice of expansion parameter. The calculations presented correctly reproduce the plasma energy-momentum tensor within the framework of second order viscous hydrodynamics.

Paper Structure

This paper contains 5 sections, 11 equations.

Table of Contents

  1. Introduction
  2. Boost-invariant flow from the black brane solution
  3. Gravity dual of the gradient expansion
  4. Absence of singularities and relation to Fefferman-Graham coordinates
  5. Summary