Phys. Rev. Lett. 91, 097902 (2003) [4 pages]Entanglement of Indistinguishable Particles Shared between Two PartiesReceived 1 October 2002; published 26 August 2003 Using an operational definition we quantify the entanglement, EP, between two parties who share an arbitrary pure state of N indistinguishable particles. We show that EP≤EM, where EM is the bipartite entanglement calculated from the mode-occupation representation. Unlike EM, EP is superadditive. For example, EP=0 for any single-particle state, but the state |1⟩|1⟩, where both modes are split between the two parties, has EP=1/2. We discuss how this relates to quantum correlations between particles, for both fermions and bosons. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.097902
DOI:
10.1103/PhysRevLett.91.097902
PACS:
03.67.Mn, 03.65.Ud, 03.75.–b, 05.30.–d
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