Xue-Jia Yu

Realization of decoherence-induced averaged symmetry-protected topological phases on quantum processors

Symmetry-protected topological (SPT) phases are conventionally formulated for pure states protected by exact symmetries. In open quantum systems, however, decoherence generates mixed-state ensembles in which average symmetry can instead emerge only after averaging over microscopic trajectories. In this work, we realize...