Abstract
We discuss techniques of the density matrix renormalization group and their application to interacting fermion systems in more than one dimension. We show numerical results for equal-time spin-spin and singlet pair field correlation functions, as well as the spin gap for the Hubbard model on two chains. The system is a gapped spin liquid at half-filling and shows weak algebraic d-wave-like pair field correlations away from half-filling.
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© 1994 Springer-Verlag Berlin Heidelberg
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Noack, R.M., White, S.R., Scalapino, D.J. (1994). The Density-Matrix Renormalization Group for Fermion Systems. In: Landau, D.P., Mon, K.K., Schüttler, HB. (eds) Computer Simulation Studies in Condensed-Matter Physics VII. Springer Proceedings in Physics, vol 78. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-79293-9_8
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DOI: https://doi.org/10.1007/978-3-642-79293-9_8
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-79295-3
Online ISBN: 978-3-642-79293-9
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