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Flow equations and the strong-coupling expansion for the Hubbard model

✍ Scribed by Jürgen Stein

Book ID
105603711
Publisher
Springer
Year
1997
Tongue
English
Weight
965 KB
Volume
88
Category
Article
ISSN
0022-4715

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Weak- and strong-coupling expansions for
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✍ J. Wagner; R. Putz; B. Ehlers; L. Lilly; A. Muramatsu; W. Hanke 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 123 KB

Pairing mediated by charge-transfer and magnetic fluctuations is examined for a two-component (d and p) Hubbard model in 2D with hopping (tnd),Short-range on-site (Ud,UD) and nearest-neighbor (Vc) repulsive interactions within (a) the randBm-phase approximation and (b) a strong coupling (tnd<E U d)