Domain wall topological entanglement entropy

• URL: http://arxiv.org/abs/2008.11794v2
• Date: Sun, 30 May 2021 20:01:23 GMT
• Title: Domain wall topological entanglement entropy
• Authors: Bowen Shi and Isaac H. Kim
• Abstract summary: We study the ground-state entanglement of gapped domain walls between topologically ordered systems in two spatial dimensions. We derive a universal correction to the ground-state entanglement entropy, which is equal to the logarithm of the total quantum dimension of a set of superselection sectors localized on the domain wall.
• Score: 7.812246338284692
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We study the ground-state entanglement of gapped domain walls between topologically ordered systems in two spatial dimensions. We derive a universal correction to the ground-state entanglement entropy, which is equal to the logarithm of the total quantum dimension of a set of superselection sectors localized on the domain wall. This expression is derived from the recently proposed entanglement bootstrap method.

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