Relaxation dynamics in the alternating XY chain following a quantum quench

Kaiyuan Cao, Yayun Hu, Peiqing Tong +2

We investigate the relaxation dynamics of the fermion two-point correlation function $C_{mn}(t)=⟨\psi (t)|c_m^{†}{c}_n|\psi (t)⟩$ in the XY chain with staggered nearest-neighbo…