caa a22 4500 467884471 CHVBK 20180406152730.0 cr unu---uuuuu 170328e20060801xx s 000 0 eng 10.1007/s10948-006-0134-2 doi (NATIONALLICENCE)springer-10.1007/s10948-006-0134-2 Dayan Moshe Department of Physics, Ben-Gurion University, 84105, Beer-Sheva, Israel aut Complementary Analysis of the Field Perturbation Theory of Superconductivity [Elektronische Daten] [Moshe Dayan] We reexamine the Nambu-Gorkov perturbation theory of superconductivity. We suggest that any field perturbation theory of superconductivity should be based on the Bogoliubov-Valatin (BV) quasi-particles. We show that two such different fields (and two additional analogous fields) may be constructed on the basis of this suggestion. The Nambu field is only one of them. For the field that is different than Nambu's, the coherence field, the interaction is given by means of two interaction vertices that are based on the Pauli matrices τ1 and τ3. Consequently, the Hartree integral for the off-diagonal pairing self-energy may be finite, and in some cases large. We interpret the results in terms of conventional superconductivity and also discuss briefly the possible implications to HTSC. Springer Science + Business Media, Inc., 2006 Gorkov-Nambu field theory of superconductivity nationallicence high-temperature superconductivity nationallicence Journal of Superconductivity and Novel Magnetism Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 19/6(2006-08-01), 477-484 1557-1939 19:6<477 2006 19 10948 https://doi.org/10.1007/s10948-006-0134-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-006-0134-2 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Dayan Moshe Department of Physics, Ben-Gurion University, 84105, Beer-Sheva, Israel aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 19/6(2006-08-01), 477-484 1557-1939 19:6<477 2006 19 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer