Power spectrum of flow fluctuations in relativistic heavy-ion collisions

Abstract

We carry out hydrodynamical simulation of the evolution of fluid in relativistic heavy-ion collisions with random initial fluctuations. The time evolution of power spectrum of momentum anisotropies shows very strong correspondence with the physics of cosmic microwave anisotropies as was earlier predicted by some of us. In particular our results demonstrate suppression of superhorizon fluctuations and the correspondence between the location of the first peak in the power spectrum of momentum anisotropies and the length scale of fluctuations and expected freezeout time scale (more precisely, the sound horizon size at freezeout).

4 pages, 4 figures

References in corpus (3)

• Glauber Modeling in High Energy Nuclear Collisions
• Super-horizon fluctuations and acoustic oscillations in relativistic heavy-ion collisions
• Precision studies of v_n fluctuations

Cited by in corpus (4)

• Initial fluctuations and power spectrum of flow anisotropies in relativistic heavy-ion collisions
• Towards laboratory detection of topological vortices in superfluid phases of QCD
• Effects of magnetic field on the evolution of energy density fluctuations
• Evolution of energy density fluctuations in the presence of a magnetic field