Functional Renormalization Group Computation of Interacting Fermi Systems(Yukawa International Seminar 2004 (YKIS2004) Physics of Strongly Correlated Electron Systems)
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概要
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The functional renormalization group is an ideal tool for dealing with the diversity of energy scales and competition of correlations in interacting Fermi systems. Starting point is an exact hierarchy of flow equations which yields the gradual evolution from a microscopic model Hamiltonian to the effective action as a function of a continuously decreasing energy cutoff. Suitable truncations of the hierarchy have recently led to powerful new approximation schemes. I review applications of the functional renormalization group to the two-dimensional Hubbard model and to one-dimensional Luttinger liquids with impurities.
- 理論物理学刊行会の論文
- 2006-02-06
著者
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METZNER Walter
Max-Planck-Institute for Solid State Research
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Metzner Walter
Max‐planck‐inst. Solid State Res. Stuttgart Deu
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Metzner Walter
Max-planck-institut Fur Festkorperforschung
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