Optical Conductivity of the Holstein Polaron: "
Author(s): Glen L. Goodvin, Andrey S. Mishchenko, and Mona Berciu
The momentum average approximation is used to derive a new kind of nonperturbational analytical expression for the optical conductivity (OC) of a Holstein polaron at zero temperature. This provides insight into the shape of the OC, by linking it to the structure of the polaron’s phonon cloud. Our me...
[Phys. Rev. Lett. 107, 076403] Published Tue Aug 09, 2011
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