Quantum Ising chain with boundary dephasing

摘要: We study the quantum Ising chain with boundary dephasing. By doubling the Hilbert space, the model is mapped to the Su–Schrieffer–Heeger model with imaginary chemical potential at the edges. We show analytically and numerically that the Liouvillian gap, ie the inverse relaxation time of the model, scales with the system size as.