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Unraveling multipartite entanglement for an important family of mixed states
Author(s) -
Huber M.,
Siewert J.
Publication year - 2016
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201500353
Subject(s) - multipartite , quantum entanglement , multipartite entanglement , quantum mechanics , physics , statistical physics , squashed entanglement , quantum
Schematic of the state space of an N ‐qubit system. The space is subdivided into N separability classes S k , k = 1 (genuinely multipartite entangled), k = 2 (biseparable), ... , k = N (fully separable). Buchholz et al. have exactly obtained the entanglement measure E G ( k )for a specific family of symmetric states. The geometric entanglementE G ( k )( ρ )is the geometric distance of the state ρ from the set of k ‐separable states.