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cond-mat.str-el1998
Weakly correlated electrons on a square lattice: a renormalization group theory
D. Zanchi, H. J. Schulz
We formulate the exact Wilsonian renormalization group for a system of interacting fermions on a lattice. The flow equations for all vertices of the Wilson effective action are exp…
cond-mat.str-el1998
SO(N) symmetries in the two--chain model of correlated fermions
H. J. Schulz
The two-chain model of correlated fermions, appropriate e.g. for doped spin ladders or carbon nanotubes, is investigated in the weak-interaction limit. It is shown that the model s…
cond-mat.str-el1998
Fermi liquids and Luttinger liquids
H. J. Schulz, G. Cuniberti, P. Pieri
In these lecture notes, the basic physics of Fermi liquids and Luttinger liquids is presented. Fermi liquids are discussed both from a phenomenological viewpoint, in relation to mi…