Causal electric charge diffusion and balance functions in relativistic heavy-ion collisions
Causal electric charge diffusion and balance functions in relativistic heavy-ion collisions
We study the propagation and diffusion of electric charge fluctuations in high-energy heavy-ion collisions using the Cattaneo form for the dissipative part of the electric current. As opposed to the ordinary diffusion equation this form limits the speed at which charge can propagate. Including the noise term in the current, …