Academic Journal
The BCS-Bogoliubov and the su(2)-Algebraic Approach to the Pairing Model in Many-Fermion System The Quasiparticle in the Conservation of the Fermion Number
| العنوان: | The BCS-Bogoliubov and the su(2)-Algebraic Approach to the Pairing Model in Many-Fermion System The Quasiparticle in the Conservation of the Fermion Number |
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| المؤلفون: | Yasuhiko Tsue, Masatoshi Yamamura |
| المساهمون: | The Pennsylvania State University CiteSeerX Archives |
| المصدر: | http://ptp.oxfordjournals.org/content/128/4/693.full.pdf. |
| سنة النشر: | 2012 |
| المجموعة: | CiteSeerX |
| الوصف: | The relation between two approaches to the su(2)-algebraic many-fermion model is dis-cussed: (1) the BCS-Bogoliubov approach in terms of the use of the quasiparticles rep-resenting all the degrees of freedom except those related to the Cooper-pairs and (2) the conventional algebraic approach in terms of the use of the minimum weight states, from which the Cooper-pairs are excluded. In order to arrive at the goal, the idea of the qua-siparticles is brought up in the conservation of the fermion number. Under the c-number replacement for the three su(2)-generators, the quasiparticles suggested in this paper are reduced to those in the BCS-Bogoliubov approach. It is also shown that the two approaches are equivalent through the c-number replacement. Further, a certain modification of the BCS-Bogoliubov approach is discussed. Subject Index: 210 Under the name of the pairing model, the su(2)-algebraic many-fermion model gives us a schematic understanding for the pairing correlation, one of the most fun-damental correlations in nuclei and, recently, the present authors have published two |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1028.5884; http://ptp.oxfordjournals.org/content/128/4/693.full.pdf |
| الاتاحة: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1028.5884 http://ptp.oxfordjournals.org/content/128/4/693.full.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| رقم الانضمام: | edsbas.C1DFFE10 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |