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The Density Matrix Renormalization Group for Fermion Systems

R. M. Noack·S. R. White·D. J. Scalapino
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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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R. M. Noack, S. R. White, D. J. Scalapino. 1994-04-30. The Density Matrix Renormalization Group for Fermion Systems. https://arxiv.org/abs/cond-mat/9404100

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