QUANTUM CORRELATIONS IN THE "q-DEFORMED" WERNER STATE
We investigate quantum discord of the "q-deformed" Werner state via Yang-Baxterization approach. There are two parameters q and u in this "q-deformed" Werner state. The parameter u, which plays an important role in some typical models, is related to the probability of the "q-deformed" two-qubit spin singlet state in this study. The "q-deformed" parameter q is related to the single loop through d = q + q(-1). When topological parameter d approaches 2 (i.e. q -> 1), the "q-deformed" Werner state degenerates into the well-known Werner state. The results show that topological parameter d has great influence on quantum correlations of the "q-deformed" Werner state. When we fix the parameter u, the quantum correlations decrease with increasing the single loop d. When d approaches +infinity (i.e. q -> 0(+) or +infinity), quantum discord, geometric measure of quantum discord and entanglement all tend to 0. While d approaches 2 (i.e. q -> 1), all of them just have the same results with the Werner state.
"q-deformed" werner state quantum discord yang-baxter equation