Physics – Condensed Matter
Scientific paper
1997-06-19
Solid State Commun. 103, 663 (1997)
Physics
Condensed Matter
4 pages, latex file. Published in Solid State Commun.103, 663 (1997). There is a typo in the effective action for the ET model
Scientific paper
10.1016/S0038-1098(97)00270-6
We study the effects of long-range Coulomb interaction (LRCI) on the quantum transport in FQH edges with $\nu=1/(2k+1)$. We consider two models, i.e., the quasi-particle tunneling (QPT) model and the electron tunneling (ET) model at the point contact. The tunneling conductance $G(T)$ is obtained using the renormalization group treatment. In QPT model, it is found that LRCI further reduces $G(T)$ below a crossover temperature $\Lambda_w$. In ET model, on the other hand, there is a temeperature region where LRCI enhances $G(T)$, and nonmonotonic temperature dependence is possible.
Imura Ken-ichiro
Nagaosa Naoto
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