The Holstein polaron: results from numerical and analytical ... - PiTP
The Holstein polaron: results from numerical and analytical ... - PiTP
The Holstein polaron: results from numerical and analytical ... - PiTP
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Generalizations:<br />
Lucian: multiple phonon modes <strong>and</strong>/or multiple free-electron b<strong>and</strong>s (but <strong>Holstein</strong> coupling)<br />
Glen: el-ph coupling which depends on phonon momentum<br />
Example: coupling to breathing-mode phonon (phonons live on different sublattice than the electron)<br />
bi<strong>polaron</strong>s (well advanced)<br />
future: finite-T, other quantities (optical<br />
conductivity), higher concentrations, models<br />
with g(k,q), ….<br />
Numerics: Bayo Lau, M. Berciu <strong>and</strong> G. A. Sawatzky, PRB 76, 174305 (2007)
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