Hydrodynamic fluctuations and two-point correlations

Understand

We examine correlations of energy density induced by initial state fluctuations, which are localized in both transverse and longitudinal extent.

• The hotspots are evolved according to hydrodynamics in a background which includes radial flow.
• Two-point energy density correlations from these hotspots are computed as a function of the difference in azimuthal angle and rapidity.
• Such localized perturbations occur naturally in the theory of hydrodynamic fluctuations and may provide insight into some features of the two-particle correlation data from RHIC and the LHC.