Separability criteria and entanglement witnesses for symmetric quantum states
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Abstract
We study the separability of symmetric bipartite quantum states and show that a single correlation measurement is sufficient to detect the entanglement of any bipartite symmetric state with a non-positive partial transpose. We also discuss entanglement conditions and entanglement witnesses for states with a positive partial transpose.
Keywords
Quantum State Density Matrix Entangle State Hermitian Operator Symmetric State
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