Is there an exponentially large Kondo screening cloud ?
arXiv:cond-mat/9508030
Abstract
We make a precise scaling conjecture, based on renormalization group ideas, regarding the screening cloud around an impurity spin in the Kondo effect and test it numerically using the Density Matrix Renormalization Group method.
RevTeX 3.0, 13 pages including 3 EPS figures using epsf macros