dc.contributor.author |
Grether, A |
|
dc.contributor.author |
de Llano, M |
|
dc.date.accessioned |
2011-01-22T10:26:15Z |
|
dc.date.available |
2011-01-22T10:26:15Z |
|
dc.date.issued |
2007 |
|
dc.identifier.issn |
0921-4534 |
|
dc.identifier.uri |
http://hdl.handle.net/11154/2265 |
|
dc.description.abstract |
A generalized Bose-Einstein condensation (GBEC) statistical theory of superconductors accounts not for BB interactions but rather for boson-fermion (BF) interactions. It extends the 1989 Friedberg-Lee BEC theory by including as bosons two-hole (2h) singlet Cooper pairs (CPs) in addition to the usual two-electron (2e) ones. It contains BCS theory when both kinds of pairs are equal in the BE condensate and in excited states-at least as far as identically reproducing the BCS gap equation for all temperatures T as well as the T = 0 BCS condensation energy for all couplings. As a ternary BF model with BF interactions, it yields T(c)s one-to-three orders-of-magnitude higher than BCS theory with the same Cooper/BCS model electron-phonon interaction. These T(c)s appear to be surprisingly insensitive to the BF interaction. (c) 2007 Elsevier B.V. All rights reserved. |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
Generalized BEC in superconductivity |
en_US |
dc.type |
Article |
en_US |
dc.identifier.idprometeo |
1080 |
|
dc.identifier.doi |
10.1016/j.physc.2007.03.242 |
|
dc.source.novolpages |
460:1141-1142 |
|
dc.subject.wos |
Physics, Applied |
|
dc.description.index |
WoS: SCI, SSCI o AHCI |
|
dc.subject.keywords |
Bose-Einstein condensation |
|
dc.subject.keywords |
BCS theory |
|
dc.subject.keywords |
friedberg-lee theory |
|
dc.relation.journal |
Physica C-Superconductivity and Its Applications |
|