ENTANGLEMENT OF TWO-QUBIT NONORTHOGONAL STATES
K. Berrada, A. Chafik, Hichem Eleuch, Y. Hassouni · International Journal of Modern Physics B · 2009
We studied the entangled two-qubit nonorthogonal pure states through spin coherent states. Using the concurrence as a measure of entanglement we express it as a function of the amplitudes of those states and find conditions for maximal and minimal entanglement.