2 papers
cond-mat.stat-mech2026
Smearing of dynamical quantum phase transitions in dissipative free-fermion systems
Gilles Parez, Vincenzo Alba
We investigate the Lindblad dynamics of the reduced Loschmidt echo (RLE) in dissipative quadratic fermion systems. Focusing on the case of gain and loss dissipation, we derive gene…
cond-mat.stat-mech2026
Reduced fidelities for free fermions out of equilibrium: From dynamical quantum phase transitions to Mpemba effect
Gilles Parez, Vincenzo Alba
We investigate the out-of-equilibrium dynamics after a quantum quench of the reduced fidelities between the states of a subregion at different times. Precisely, we consider the…