Toy model of boundary states with spurious topological entanglement entropy
Toy model of boundary states with spurious topological entanglement entropy
Topological entanglement entropy has been extensively used as an indicator of topologically ordered phases. We study the conditions needed for two-dimensional topologically trivial states to exhibit spurious contributions that contaminates topological entanglement entropy. We show that if the state at the boundary of a subregion is a stabilizer state, then …