Two qubits shared between Alice and Bob are prepared in the state | = 0.6 ,|00 + 0.4 ,|11

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Quantum Information and Technology, Ch Entanglement as a resource

Problem

Two qubits shared between Alice and Bob are prepared in the state ∣ψ⟩=0.6 ∣00⟩+0.4 ∣11⟩.|\psi\rangle=\sqrt{0.6}\,|00\rangle+\sqrt{0.4}\,|11\rangle. Calculate the entropy of entanglement E(ψ)E(\psi) in ebits.

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