Large-radius Holstein polaron and the problem of spontaneous symmetry breaking
Other Condensed Matter
2014-08-05 v2 Strongly Correlated Electrons
Abstract
A translation-invariant solution is found for a large-radius Holstein polaron whose energy in the strong coupling limit is lower than that obtained by Holstein. The wave function corresponding to this solution is delocalized. A conclusion is made about the absence of a spontaneous symmetry breaking in the quantum system discussed.
Keywords
Cite
@article{arxiv.1403.2920,
title = {Large-radius Holstein polaron and the problem of spontaneous symmetry breaking},
author = {V. D. Lakhno},
journal= {arXiv preprint arXiv:1403.2920},
year = {2014}
}
Comments
20 pages, 4 figures. Appendix A and references 24, 25, 26 were added. Progress of Theoretical and Experimental Physics, accepted