Quantum Fisher information of a qubit-qutrit system in Garfinkle–Horowitz–Strominger dilation space–time

Yi-Jun Lian,Jin-Ming Liu

Figure 4. (a) Contour plot of ${\widetilde{F}}_{{{AB}}_{{\rm{I}}}}(D)$ versus the reversal strengths p and q with D = 0.8. (b) ${\widetilde{F}}_{{{AB}}_{{\rm{I}}}}(D)$ as a function of p for different D with q = 0.1.