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

Understand

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.