Localization and topological properties of the nonequilibrium steady state in one-dimensional homogenous systems with disorder and dissipation
Phys. Rev. B 112, 104204 – Published 12 September, 2025
DOI: https://doi.org/10.1103/qn95-d4qy
Abstract
We investigate the localization and topological properties of the nonequilibrium steady state (NESS) in a one-dimensional homogeneous system. Our results demonstrate that, despite the absence of disorder in the initial system, the NESS can exhibit localization under bond dissipation. These dissipation-driven localization and delocalization phenomena are clearly distinguished using Wigner distributions. Furthermore, we find that the initial localization characteristics of the system significantly influence the localization properties of the NESS. Drawing upon the concept of Bose-Einstein condensate broadening in cold-atom experiments, along with experimental data, we systematically characterize the impact of bond dissipation and disorder on the localization and topological properties of the NESS. The phase diagram reveals that the NESS can be topologically nontrivial even when the initial system is topologically trivial, and that the topological triviality of the initial system strengthens the topological nontriviality of the NESS. This work provides insights into the localization and topological phase transitions in homogeneous systems induced by bond dissipation and disorder.
