Thermal noise in a boost-invariant matter expansion in relativistic heavy-ion collisions

Abstract

We formulate a general theory of thermal fluctuations within causal second-order viscous hydrodynamic evolution of matter formed in relativistic heavy-ion collisions. The fluctuation is treated perturbatively on top of a boost-invariant longitudinal expansion. Numerical simulation of thermal noise is performed for a lattice QCD equation of state and for various second-order dissipative evolution equations. Phenomenological effects of thermal fluctuations on the two-particle rapidity correlations are studied.

11 pages, 5 figures

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Cited by in corpus (7)

• Hydrodynamic Fluctuations in Relativistic Heavy-Ion Collisions
• Nuclear interactions and net-proton number fluctuations in heavy ion collisions at the SIS18 accelerator
• Approach to thermalization and hydrodynamics
• Thermal noise in non-boost-invariant dissipative hydrodynamics
• Thermal fluctuations on the freeze-out surface of heavy-ion collisions and their impact on particle correlations
• Causal hydrodynamic fluctuations in a one-dimensional expanding system
• Effects of magnetic field on the evolution of energy density fluctuations