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Electron correlations in the effective Hubbard model

✍ Scribed by A. N. Kocharian; P. S. Ovnanian


Book ID
112513702
Publisher
Springer
Year
1991
Tongue
English
Weight
306 KB
Volume
83
Category
Article
ISSN
1434-6036

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Electron correlations in the Hubbard mod
✍ Akihisa Koga; Takuya Yoshioka; Norio Kawakami; Hisatoshi Yokoyama 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 213 KB

We investigate the two-dimensional Hubbard model on the planar pyrochlore lattice at half filling. By means of variational Monte Carlo simulations including nearest neighbor doublon-holon correlations as well as onsite correlations, we discuss how the semi-metallic state is stabilized at zero temper