Fermionic entanglement in itinerant systems

Paolo Zanardi, Xiaoguang Wang

Research output: Contribution to journalArticlepeer-review

118 Citations (Scopus)


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
Issue number37
Publication statusPublished - 2002

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