Genuinely entangled symmetric states with no $N$-partite correlations

Autor: Designolle, S., Giraud, O., Martin, J.
Rok vydání: 2017
Předmět:
Zdroj: Phys. Rev. A 96, 032322 (2017)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevA.96.032322
Popis: We investigate genuinely entangled $N$-qubit states with no $N$-partite correlations in the case of symmetric states. Using a tensor representation for mixed symmetric states, we obtain a simple characterization of the absence of $N$-partite correlations. We show that symmetric states with no $N$-partite correlations cannot exist for an even number of qubits. We fully identify the set of genuinely entangled symmetric states with no $N$-partite correlations in the case of three qubits, and in the case of rank-2 states. We present a general procedure to construct families for an arbitrary odd number of qubits.
Comment: 9 pages, 2 figures
Databáze: arXiv