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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(spin is irrelevant, N = number of unit cells, infinity at the end, all k,q-sums over Brillouin zone)<br />
Asymptotic behavior:<br />
zero-coupling limit, g=0 eigenstates of given k:<br />
with eigenenergies<br />
where, for example,<br />
E k<br />
el + 2 ph continuum<br />
el + 1 ph continuum<br />
Ω<br />
k<br />
single electron
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