TY - JOUR
T1 - Comments on "translation-invariant bipolarons and the problem of high-temperature superconductivity"
AU - Klimin, S.N.
AU - Devreese, J.T.L.
PY - 2012
Y1 - 2012
N2 - 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. (C) 2012 Elsevier Ltd. All rights reserved
AB - 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. (C) 2012 Elsevier Ltd. All rights reserved
U2 - 10.1016/j.ssc.2012.05.013
DO - 10.1016/j.ssc.2012.05.013
M3 - Article
SN - 0038-1098
VL - 152
SP - 1601
EP - 1603
JO - Solid State Communications
JF - Solid State Communications
IS - 16
ER -