Parametric Equations for the Energy Gap. Extended BCS Case |
| R. Gonczarek and M. Mulak Institute of Physics, Technical University of Wrocław, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland |
| Received: June 21, 1994; in final form: September 1, 1994 |
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| The generalised form of the gap equation which comprises also some non-BCS approaches is defined and solved. The parametric gap equations have been derived in a few equivalent cases and discussed indissimilar limits. It is shown that the relations between the critical temperature and zero-temperature energy gap can be extended for all systems under consideration. The main benefits and incontestable advantage of the presented method are demonstrated with regard to the general BCS case. |
| DOI: 10.12693/APhysPolA.86.1007 PACS numbers: 74.20.-z |