| speaker: | K. Schönhammer |
| time: | Fr. 11.04.03, 9:00 - 9:50 |
The conductance through an interacting nano-wire containing an impurity and coupled to semi-infinite leads is studied using a functional renormalization group method. This technique enables us to obtain results for microscopic lattice models without any further idealizations. We demonstrate that one-parameter scaling of the conductance holds. Including the flow of the two-particle vertex our results show excellent agreement with the analytically known scaling function at Luttinger liquid parameter $K=1/2$ and numerical density-matrix renormalization group data.