Title
Comments on "Translation-invariant bipolarons and the problem of high-temperature superconductivity" Comments on "Translation-invariant bipolarons and the problem of high-temperature superconductivity"
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Solid state communications. - New York, N.Y.
Volume/pages
152(2012) :16 , p. 1601-1603
ISSN
0038-1098
ISI
000307039700021
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
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. (C) 2012 Elsevier Ltd. All rights reserved.
E-info
https://repository.uantwerpen.be/docman/iruaauth/05a762/22e2643.pdf
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