Variational study of polaron dynamics with the Davydov Ansätze
Date of Issue2011
School of Materials Science and Engineering
We derive explicit expressions for the amplitudes of the deviation vectors for the time-dependent Davydov D1, D2 and D ̃ Ansätze from the exact solution of the Schro ̈dinger equation for the Holstein polaron. By comparing the deviation amplitudes with the system energies, a systematic study is carried out on the validity of the Davydov Ansätze.
DRNTU::Science::Physics::Atomic physics::Solid state physics
Physica status solidi (c)
© 2011 Wiley-VCH Verlag. This is the author created version of a work that has been peer reviewed and accepted for publication by Physica Status Solidi A, Wiley-VCH Verlag. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1002/pssc.201000721.