Geodesic
Renormalization-group analysis of 1D Hubbard model
Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika, Tome 5 (2012) no. 2, pp. 223-229

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Ground state energy of 1D Hubbard model is obtained using a real-space renormalization-group tehnique. We study half-field Hubbard model with nearest-neighbor hopping.
Keywords: 1D Hubbard model, renormalization-group, ground state energy. 
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     author = {Kseniya A. Lobach and Sergey G. Ovchinnikov},
     title = {Renormalization-group analysis of {1D} {Hubbard} model},
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Kseniya A. Lobach; Sergey G. Ovchinnikov. Renormalization-group analysis of 1D Hubbard model. Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika, Tome 5 (2012) no. 2, pp. 223-229. http://geodesic.mathdoc.fr/item/JSFU_2012_5_2_a7/