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Disorder-free dynamic localization in non-adiabatic processes: entanglement entropy and OTOC.
Journal of Physics: Condensed Matter ( IF 2.707 ) Pub Date : 2020-04-02 , DOI: 10.1088/1361-648x/ab85f1
Yijie Mo,Jiaqing Huang,Yao Yao

We investigate the localization in a one-dimensional modified Peierls model with a non-adiabatic dynamic method. Different from the polaron scenario, here the localization stems from extensive conserved local quantities in the disorder-free lattice. Both the entanglement entropy and out-of-time-ordered correlator (OTOC) show the oscillating feature of dynamically generated localization. Although the strong interaction between electrons may suppress the dynamical features of the localization, but the effect of many-body localization is not observed. The role of disorder presented at finite temperature is discussed as well. The electrons diffuse in a classical manner. Benefitting from the indication of OTOC, it is found that the Anderson localization becomes dominant instead of dynamic localization as observed in disorder-free lattices.
更新日期:2020-05-13

 

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