Entanglement Entropy of a Random Pure State
Entanglement Entropy of a Random Pure State
Entanglement Entropy of a Random Pure State
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<strong>Pure</strong> <strong>State</strong> <strong>of</strong> Bipartite System<br />
• |ψ >= ∑ i,α<br />
x i,α |i A > ⊗|α B ><br />
• If x i,α = a i b α then<br />
|ψ >= ∑ i<br />
a i |i A > ⊗ ∑ α<br />
b α |α B >= |Φ A > ⊗|Φ B ><br />
−→ Fully separable (factorised)<br />
S.N. Majumdar<br />
Distribution <strong>of</strong> Bipartite <strong>Entanglement</strong> <strong>of</strong> a <strong>Random</strong> <strong>Pure</strong> <strong>State</strong>