【摘要】 本文计算了通过形变势作用的一维强耦合电子-声学声子系统的基态能量。采用一个简单的么正变换和变分法,得到一个新的哈密顿量,对这个哈密顿量可以用微扰理论处理,零级近似下的基态能量为 E₀=-8/3π²a²ms².更多还原

【Abstract】 In this poper,the ground state energy of an one-dimensional strong-coupling eleetron-phonon system through a acoustic deformation potential is calculated by using a simple unitary transformation and a variational treatment.A Hamiltonian obtained by the transformation may be treated by a perturbtional method.The ground state energy of the electron-phonon system is E₀=-8/3π²α²ms²,for the zero order approximation,α is the dimensionless electron-phonon coupling constant.更多还原