Exact soliton solutions describing nonlinear dynamical behavior of Bloch electrons under action of dc-ac electric fields are obtained,from which it is found that the evolution behavior of Bloch electrons is always osc...Exact soliton solutions describing nonlinear dynamical behavior of Bloch electrons under action of dc-ac electric fields are obtained,from which it is found that the evolution behavior of Bloch electrons is always oscillatory in time,with oscillatory frequencies depending on electric fields.A number of phenomena associated with the translational symmetry of the system,the staggered localized states,as well as the relationship between intrinsic localized states and solitons are addressed.The corresponding energy,momentum,and norm are also studied.展开更多
A solvable Anderson lattice model is formulated.The exact eigenstates of model Hamiltonian are constructed by using the Bethe ansatz.The Be the ansatz equations are obtained from the periodic boundary conditions.
基金Supported in part by the National Natural Science Foundation of China under Grant Nos.19674059,19674063 and 19677101.
文摘Exact soliton solutions describing nonlinear dynamical behavior of Bloch electrons under action of dc-ac electric fields are obtained,from which it is found that the evolution behavior of Bloch electrons is always oscillatory in time,with oscillatory frequencies depending on electric fields.A number of phenomena associated with the translational symmetry of the system,the staggered localized states,as well as the relationship between intrinsic localized states and solitons are addressed.The corresponding energy,momentum,and norm are also studied.
基金Supported by the National Natural Science Foundation of China。
文摘A solvable Anderson lattice model is formulated.The exact eigenstates of model Hamiltonian are constructed by using the Bethe ansatz.The Be the ansatz equations are obtained from the periodic boundary conditions.
