Non-Fermi liquid behavior in Kondo models

Details Non-Fermi liquid behavior in Kondo models Non-Fermi liquid behavior in Kondo models

2004-09-07

arxiv.org/abs/cond-mat/0409173v1

Physics

Condensed Matter

Strongly Correlated Electrons

A brief review submitted to the special issue of J. Phys. Soc. of Japan, "Kondo effect -- 40 years after the discovery"

Scientific paper

10.1143/JPSJ.74.59

Despite the fact that the low energy behavior of the basic Kondo model cannot be studied perturbatively it was eventually shown by Wilson, Anderson, Nozieres and others to have a simple "local Fermi liquid theory" description. That is, electronic degrees of freedom become effectively non-interacting in the zero energy limit. However, generalized versions of the Kondo model involving more than one channel or impurity may exhibit low energy behavior of a less trivial sort which can, nonetheless, be solved exactly using either Bethe ansatz or conformal field theory and bosonization techniques. Now the low energy limit exhibits interacting many body behavior. For example, processes in which a single electron scatters off the impurity into a multi electron-hole state have a non-vanishing (and sometimes large) amplitude at zero energy. This corresponds to a rare solveable example of non-Fermi liquid behavior. Essential features of these phenomena are reviewed.

Affiliated with

Also associated with

No associations

Rating

Non-Fermi liquid behavior in Kondo models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Non-Fermi liquid behavior in Kondo models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-Fermi liquid behavior in Kondo models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-343404