Coherent states and global entanglement in an N qubit system
classification
🪐 quant-ph
keywords
coherententangledgloballymathbbqubitstatestatessystem
read the original abstract
We consider an $N$ qubit system and show that in the symmetric subspace, $\mathbb{S}$ a state is not globally entangled, iff it is a coherent state. It is also proven that in the orthogonal complement $\mathbb{S}_{\bot}$ all states are globally entangled.
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