SHOCK WAVES IN LIFSHITZ-LIKE BACKGROUNDS AND HOLOGRAPHIC DESCRIPTION OF QGP
A holographic duality between gravitation and field theories with a Lifshitz scaling symmetry has recently aroused much attention. We consider Lifshitz-like backgrounds in the context of their applications to the anisotropic quark-gluon plasma created in heavy-ion collisions. We construct shock waves geometries for Lifshitz-like metrics1. For the geometry of two colliding Lifshitz domain walls the areas of trapped surfaces are calculated. According to the holographic approach, the multiplicity of particles produced in heavy-ion collisions can be estimated by the area of the trapped surface. We show that in the 5-dimensional case the dependence of multiplicity on the energy of colliding ions can fit the experimental data observed at RHIC and LHC.
Keywords: Lifshitz-like metrics, shock waves, trapped surface, holography, quark-gluon plasma
References:
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Issue: 12, 2014
Series of issue: Issue 12
Pages: 94 — 99
Downloads: 612