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Entanglement entropy with interface defects

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arxiv cond-mat/0502034 v1 pith:EXBOW5WK submitted 2005-02-01 cond-mat.stat-mech

Ingo Peschel This is my paper · ORCID
classification cond-mat.stat-mech
keywords entanglementdefectsentropyinterfacebehaviourchainconsiderconstants
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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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Local-to-Global Entanglement Dynamics by Periodically Driving Impurities

    quant-ph 2025-10 conditional novelty 7.0 of 10

    A local Floquet drive on one bond in a 1D fermion chain produces a sharp entanglement transition at T*=π, from local-quench logarithmic growth to global-heating linear growth.

  2. Entanglement of Inhomogeneous Free Bosons and Orthogonal Polynomials

    cond-mat.stat-mech 2025-05 conditional novelty 6.0 of 10

    For inhomogeneous free-boson chains, the leading entanglement entropy is (a*/6) log N, where a* is the scaling exponent of the region where the local potential vanishes.

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