Entanglement entropy with interface defects

Abstract

We consider a section of a half-filled chain of free electrons and its entanglement with the rest of the system in the presence of one or two interface defects. We find a logarithmic behaviour of the entanglement entropy with constants depending continuously on the defect strength.

10 pages, 7 figures

References in corpus (2)

• Random Matrix Theory and Entanglement in Quantum Spin Chains
• Entanglement entropy in a boundary impurity model

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