Reduced density matrices of 2D topological orders at entanglement cuts realize 1D mixed-state phases whose properties detect fractionalized excitations such as anyons and spinons.
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From Topological Order to Mixed-State Phases: A Ground-State Probe of Fractionalized Excitations
Reduced density matrices of 2D topological orders at entanglement cuts realize 1D mixed-state phases whose properties detect fractionalized excitations such as anyons and spinons.