Grüneisen ratio quest for self-duality of quantum criticality in a spin-1/2 XY chain with Dzyaloshinskii-Moriya interaction

Lin-Jie Ding(丁林杰),Yuan Zhong(钟园)

Figure 1. For h=0 and T = 0.005, (a) D-δ phase diagram; (b) thermal Drude weight and (c) entropy as a function of δ for D = 0 and 0.25; (d) D dependence of entropy for δ=−0.5 and 0.5.