Mobile Small Polaron
A. S. AlexandrovDepartment of Physics, Loughborough University, Loughborough LE11 3TU, United KingdomP. E. KornilovitchBlackett Laboratory, Imperial College, London SW7 2BZ, United Kingdom
1999en
ABI
Abstract
Extending the Fr\"ohlich polaron problem to a discrete ionic lattice we study a polaronic state with a small radius of the wave function but a large size of the lattice distortion. We calculate the energy dispersion and the effective mass of the polaron with the $1/\ensuremath{\lambda}$ perturbation theory and with the exact Monte Carlo method in the nonadiabatic and adiabatic regimes, respectively. The ``small'' Fr\"ohlich polaron is found to be lighter than the small Holstein polaron by 1 or more orders of magnitude.
Identifiers
Citations and references
Cited by 180 references