Comments on "Translation-invariant bipolarons and the problem of high-temperature superconductivity"
Other Condensed Matter
2015-06-04 v1
Abstract
We comment on the recent results of Refs. [1, 2] on the bipolaron problem derived using an approximation of Gross - Tulub. It is proved that, contrary to the claim made in Refs. [1, 2], the bipolaron ground state energy calculated there in the strong-coupling approximation has not been shown to constitute a variational upper bound.
Keywords
Cite
@article{arxiv.1204.4142,
title = {Comments on "Translation-invariant bipolarons and the problem of high-temperature superconductivity"},
author = {S. N. Klimin and J. T. Devreese},
journal= {arXiv preprint arXiv:1204.4142},
year = {2015}
}
Comments
3 pages, 2 figures, submitted to Solid State Communications