Fermionic entanglement in itinerant systems

Paolo Zanardi, Xiaoguang Wang

    Research output: Contribution to journalArticlepeer-review

    121 Citations (Scopus)

    Abstract

    We study pairwise quantum entanglement in systems of fermions itinerant in a lattice from a second-quantized perspective. Entanglement in the grand-canonical ensemble is studied, both for energy eigenstates and for the thermal state. Relations between entanglement and superconducting correlations are discussed in a BCS-like model and for η-pair superconductivity.
    Original languageEnglish
    Pages (from-to)7947-7959
    Number of pages13
    JournalJournal of Physics A: Mathematical and General
    Volume35
    Issue number37
    DOIs
    Publication statusPublished - 2002

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