NewEvery arXiv paper, its researchers & institutions — mapped.
paper

Entanglement entropy with interface defects

arXiv:cond-mat/0502034 · doi:10.1088/0305-4470/38/20/002

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