Two-dimensional Hubbard-Holstein bipolaron
نویسندگان
چکیده
منابع مشابه
Small Bipolarons in the 2-dimensional Holstein-Hubbard Model
The spatially localized bound states of two electrons in the adiabatic two-dimensional HolsteinHubbard model on a square lattice are investigated both numerically and analytically. The interplay between the electron-phonon coupling g, which tends to form bipolarons and the repulsive Hubbard interaction υ ≥ 0, which tends to break them, generates many different ground-states. There are four doma...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2004
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.69.245111