Steady-State Phase Transition in One-Dimensional Quantum Contact Process

Author(s): Lin Shang, Shuai Geng, Xingli Li, and Jiasen Jin We investigate the steady-state phases of the one-dimensional quantum contact process model. We present the Liouvillian gap in the thermodynamic limit and uncover the metastability of the system. Exploiting the mean-field approximations with a novel self-consistent condition based on the effective f… [Phys. Rev. Lett. 136, 050402] Published Wed Feb 04, 2026