Quantum correlation approach to criticality in the XX spin chain with multiple interaction

We investigate the quantum critical behavior in the XX   spin chain with a XZYXZY–YZXYZX type multiple interaction by means of quantum correlation (Concurrence CC, quantum discord DQDQ and geometric discord DGDG). Around the critical point, the values of these quantum correlations and corresponding derivatives are investigated numerically and analytically. The results show that the non-analyticity property of the concurrence cannot signal well the quantum phase transition, but both the quantum discord and geometric discord can characterize the critical behavior in such model exactly.