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Two-qubit mixed states more entangled than pure states: Comparison of the relative entropy of entanglement for a given nonlocality

Two-qubit mixed states more entangled than pure states: Comparison of the relative entropy of entanglement for a given nonlocality

Amplitude damping changes entangled pure states into usually less-entangled mixed states. We show, however, that even local amplitude damping of one or two qubits can result in mixed states more entangled than pure states if one compares the relative entropy of entanglement (REE) for a given degree of the Bell--Clauser-Horne-Shimony-Holt …