Renormalization-group study of the one-dimensional polaron problem

Authors
Keil, M Schoeller, H
Citation
M. Keil et H. Schoeller, Renormalization-group study of the one-dimensional polaron problem, PHYS REV B, 62(5), 2000, pp. 2990-2993
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
5
Year of publication
2000
Pages
2990 - 2993
Database
ISI
SICI code
0163-1829(20000801)62:5<2990:RSOTOP>2.0.ZU;2-Q
Abstract
We investigate the one-dimensional polaron problem and calculate the ground -state energy and the effective mass. We use a real-time renormalization-gr oup method and compare our results with first- and second-order perturbatio n theory, with Feynman's variational principle, and with the method of Lee, Low, and Pines.