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Verifying multi-partite mode entanglement of W states

Steven van Enk, University of Oregon

(Session 4 : Friday from 3:30-4:00)

Abstract. We construct a method for verifying mode entanglement of N-mode W-states. The ideal W-state contains exactly one excitation symmetrically shared between N modes, but our method takes the existence of higher numbers of excitations into account, as well as the vacuum state and other deviations from the ideal state. Moreover, our method distinguishes between full N-party entanglement and states with M-mode entanglement with M