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Renormalization group equations with multiple coupling constants

✍ Scribed by G. Ghika; M. Vişinescu


Book ID
112837127
Publisher
Springer-Verlag
Year
1976
Weight
491 KB
Volume
31
Category
Article
ISSN
0369-3546

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Renormalization group calculations with
✍ G. Abramovici 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 78 KB

We investigate the phase diagram of a ladder system (two chains, with a Hubbard interaction U and an interband coupling t ? ). It is already known [M. Fabrizio, Phys. Rev. B 48 (1993) 15838] that backward interband scattering ðg b Þ plays a particular role in this system. Moreover, some authors (for