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arXiv:quant-ph/0210002 · Physical Review Letters

Entanglement of Indistinguishable Particles Shared between Two Parties

Howard M. Wiseman, John A. Vaccaro

Published Aug 26, 2003• 373 citations
arXivHTMLPDF

Abstract

Using an operational definition we quantify the entanglement, E(P), between two parties who share an arbitrary pure state of N indistinguishable particles. We show that E(P)< or =E(M), where E(M) is the bipartite entanglement calculated from the mode-occupation representation. Unlike E(M), E(P) is superadditive. For example, E(P)=0 for any single-particle state, but the state |1>|1>, where both modes are split between the two parties, has E(P)=1/2. We discuss how this relates to quantum correlations between particles, for both fermions and bosons.

DOI
10.1103/physrevlett.91.097902

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