Activity-induced phase transition in a quantum many-body system

A crowd of nonequilibrium entities can show phase transition behaviors that are prohibited in conventional equilibrium setups. An interesting question is whether similar activity-driven transitions also occur pure quantum systems. Here we investigate a classical anisotropic lattice gas model undergoes motility-induced separation and extend the to regime. The resulting many-body induced by non-Hermiticity. diagram includes active involving separation, microphase flocking. identified as dynamical paths kinetics upon application biasing fields. Our approach sheds light on useful connection between non-Hermitian physics.