Now showing items 1-3 of 3
Multimode vibronic spectra of the Holstein molecular crystal model
Vibronic spectra of the Holstein model for molecular crystals are investigated using the dynamical mean field theory with the additional aid of the multi-mode Brownian oscillator model. The effects of temperature, ...
Validity of time-dependent trial states for the Holstein Polaron
Validity of three time-dependent trial states for the Holstein Hamiltonian, namely, the D2, Merrifield and D Ansatze has been examined in detail with regards to their deviations from the exact solution to the time-dependent ...
Dynamics of the Davydov D-squared Ansatz with off-diagonal coupling
Following the Dirac-Frenkel time-dependent variational principle, dynamics of a one-dimensional Holstein polaron with off-diagonal exciton-phonon coupling is probed by employing the Davy dov D2 Ansatz with two sets of ...