Diffusive entanglement spreading in the $\nu = 1$ QSSEP model
Angelo Russotto (SISSA)
We discuss the $\nu=1$ Quantum Symmetric Simple Exclusion Process, a one-dimensional system of free fermions with time-dependent, spatially uniform stochastic hopping amplitudes.
We investigate the out-of-equilibrium entanglement spreading following both global and inhomogeneous quantum quenches. For global quenches, we develop a diffusive quasiparticle picture that captures the full-time probability distribution of the entanglement entropy. For inhomogeneous quenches, we extend the framework of quantum generalized hydrodynamics to account for the underlying stochastic dynamics of the local quasiparticle occupation function.