Polaron Mass and Electron-Phonon Correlations in the Holstein Model
Figure 1
Ratio of the one-dimensional polaron mass to the bare band mass versus e-ph coupling according to the Lang-Firsov and the Modified Lang-Firsov methods. The adiabatic parameter is set at (a) the intermediate value, ; (b) a fully adiabatic regime, ; and (c) an antiadiabatic regime, . meV and (in units meV) are the intramolecular and intermolecular energies of the diatomic molecular chain, respectively.
