BLF-SSH polarons coupled to acoustic phonons in the adiabatic limit
Carl J. Chandler, F. Marsiglio
We survey polaron formation in the Barisi\ifmmode \acute{c}\else \'{c}\fi{}-Labb\'e-Friedel and Su-Schrieffer-Heeger (BLF-SSH) model using acoustic phonons in the adiabatic limit. Multiple different numerical optimization routines and strong-coupling analytical calculations are used to find a robust ground-state energy for a wide range of coupling strengths. The electronic configuration and accompanying ionic distortions of the polaron were determined, as well as a nonzero critical coupling strength for polaron formation in two and three dimensions.
arXiv:1411.3635•Physical Review B•Dec 31, 2014•4 citations