Effect of giant resonances on fluctuations of electromagnetic fields in heavy ion collisions

TL;DR

This paper uses quantum calculations to analyze electromagnetic field fluctuations in heavy ion collisions, revealing significantly smaller fluctuations than classical models due to giant resonance effects.

Contribution

It introduces a quantum approach incorporating giant resonances to accurately estimate electromagnetic field fluctuations in heavy ion collisions.

Findings

Quantum fluctuations are smaller than classical predictions.

Giant dipole and quadrupole resonances significantly influence field fluctuations.

Results impact understanding of electromagnetic phenomena in heavy ion collisions.

Abstract

We perform quantum calculations of fluctuations of the electromagnetic fields in $AA$ collisions at RHIC and LHC energies. Calculations are performed with the help of the fluctuation-dissipation theorem accounting for the giant dipole and quadrupole resonances. We find that in the quantum picture the field fluctuations are much smaller than that predicted by the classical Monte-Carlo simulation with the Woods-Saxon nuclear density used in previous analyses.