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在量子化的Holstein模型的基础上再考虑电子与双声子相互作用,运用相干态展开法,得到了一维分子晶体模型处于基态的极化子满足的非线性薛定谔方程及其定态孤子解、基态能量、晶格位移.
On the basis of the quantized Holstein model, we consider the interaction between the electron and the dipole, and obtain the nonlinear Schrödinger equation satisfying the polaron in the ground state of the one-dimensional molecular crystal model and the solution of the stationary soliton using the coherent state expansion method. Ground state energy, lattice shift.