104 citations · 534 across the 15 of their papers we have counts for
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Disordered loops in the two-dimensional antiferromagnetic spin-fermion model
Tilman Enss, Sergio Caprara, Claudio Castellani +2
The spin-fermion model has long been used to describe the quantum-critical behavior of 2d electron systems near an antiferromagnetic (AFM) instability. Recently, the standard proce…
A gentle introduction to the functional renormalization group: the Kondo effect in quantum dots
Sabine Andergassen, Tilman Enss, Christoph Karrasch +1
The functional renormalization group provides an efficient description of the interplay and competition of correlations on different energy scales in interacting Fermi systems. An…
Kondo physics in transport through a quantum dot with Luttinger liquid leads
S. Andergassen, T. Enss, V. Meden
We study the gate voltage dependence of the linear conductance through a quantum dot coupled to one-dimensional leads. For interacting dot electrons but noninteracting leads Kondo…
Renormalization-group analysis of the one-dimensional extended Hubbard model with a single impurity
S. Andergassen, T. Enss, V. Meden +3
We analyze the one-dimensional extended Hubbard model with a single static impurity by using a computational technique based on the functional renormalization group. This extends p…
Renormalization, Conservation Laws and Transport in Correlated Electron Systems
Tilman Enss
This thesis comprises two parts centered around the functional renormalization-group framework: in the first part, I study the role of symmetries and conservation laws in approxima…
Interaction flow method for many-fermion systems
Carsten Honerkamp, Daniel Rohe, Sabine Andergassen +1
We propose an interaction flow scheme that sums up the perturbation expansion of many-particle systems by successively increasing the interaction strength. It combines the unbiased…