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arxiv: 1707.04103 · v2 · pith:GD34LK2Wnew · submitted 2017-07-13 · 🪐 quant-ph

Genuinely entangled symmetric states with no N-partite correlations

classification 🪐 quant-ph
keywords statescorrelationspartitesymmetriccaseentangledgenuinelyqubits
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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.

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