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The charge and spin sectors of the t-t′ Hubbard model

✍ Scribed by Adolfo Avella; Ferdinando Mancini


Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
242 KB
Volume
408-410
Category
Article
ISSN
0921-4534

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Parallelization of the exact diagonaliza
✍ W Fettes; I Morgenstern; T Husslein 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 947 KB

We present a new parallel algorithm for the exact diagonalization of the t -t'-Hubbard model with the Lanczos method. By invoking a new scheme of labeling the states we were able to obtain a speedup of up to four on 16 nodes of an IBM SP2 for the calculation of the ground state energy and an almost