A Single Impurity in Tomonaga-Luttinger Liquids

Details A Single Impurity in Tomonaga-Luttinger Liquids A Single Impurity in Tomonaga-Luttinger Liquids

1997-07-16

arxiv.org/abs/cond-mat/9707162v1

Physics

Condensed Matter

To be published in the Philosophical Magazine in the Proceedings of the "MINERVA WORKSHOP on MESOSCOPICS, FRACTALS and NEURAL

Scientific paper

The problem of a single impurity in one dimensional Tomonaga-Luttinger liquids with a repulsive electron-electron interaction is discussed. We find that the renormalization group flow diagram for the parameters characterizing the impurity is rather complex. Apart from the fixed points corresponding to two weakly connected semi-infinite wires, the flow diagram contains additional fixed points which control the low temperature physics when the bare potential of the impurity is not strong.

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