摘要
Within the framework of Feynman-Haken path-integral theory,the general expression of the ground-state energy for multi-dimensional polarons in symmetric quantum dots for arbitrary electron-phonon coupling constants are derived.Moreover,in the weak-coupling limit,the previous results by the second-order Rayleigh-Schrodinger perturbative theory are completely recovered.More interestingly,the extended-and localized-state solutions to the ground-state energy are obtained analytically.
基金
Supported by the Postdoctoral Science Foundation of China。
