The Strongly Coupled Polaron on the Torus: Quantum Corrections to the Pekar Asymptotics
arXiv:2101.12566 · doi:10.1007/s00205-021-01715-7
Abstract
We investigate the Fröhlich polaron model on a three-dimensional torus, and give a proof of the second-order quantum corrections to its ground-state energy in the strong-coupling limit. Compared to previous work in the confined case, the translational symmetry (and its breaking in the Pekar approximation) makes the analysis substantially more challenging.