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quant-ph2013★ 98 cited
Entanglement estimation from Bell inequality violation
Karol Bartkiewicz, Bohdan Horst, Karel Lemr +1
It is well known that the violation of Bell's inequality in the form given by Clauser, Horne, Shimony, and Holt (CHSH) in two-qubit systems requires entanglement, but not vice vers…
quant-ph2013★ 83 cited
Two-qubit mixed states more entangled than pure states: Comparison of the relative entropy of entanglement for a given nonlocality
Bohdan Horst, Karol Bartkiewicz, Adam Miranowicz
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 mix…