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Superfluidity and perturbation expansion in a large fermi system

✍ Scribed by A. Tomasini


Book ID
112839141
Publisher
Società Italiana di Fisica
Year
1961
Weight
521 KB
Volume
20
Category
Article
ISSN
0029-6341

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Effective Field Theory for Fermi Systems
✍ R.J. Furnstahl; H.-W. Hammer 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 197 KB

A system of fermions with short-range interactions at finite density is studied using the framework of effective field theory. The effective action formalism for fermions with auxiliary fields leads to a loop expansion in which particle-hole bubbles are resummed to all orders. For spin-independent i