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20082018
most citedEfficient Parametrization of the Vertex Function, -Scheme, and the (t,t')-Hubbard Model at Van Hove Filling

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cond-mat.str-el2011★ 62 cited

Frequency Dependent Vertex Functions of the (t,t')-Hubbard Model at Weak Coupling

Christoph Husemann, Kay-Uwe Giering, Manfred Salmhofer

We present a functional renormalization group calculation for the two-dimensional (t,t')-Hubbard model at Van Hove filling. Using a channel decomposition we describe the momentum a…