Chiral symmetric three-particle subspaces are maximally entangled, yield U⊗3-invariant entanglement witnesses, and lead to a simple SDP solution for genuine multipartite entanglement in unitarily invariant states.
The largest eigenvalue corresponds to the antisymmetric basis vectors and implies the quantum bound forW+
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Chiral Symmetries and Multiparticle Entanglement
Chiral symmetric three-particle subspaces are maximally entangled, yield U⊗3-invariant entanglement witnesses, and lead to a simple SDP solution for genuine multipartite entanglement in unitarily invariant states.