Kondo screening cloud in a one dimensional wire: Numerical renormalization group study

Abstract

We study the Kondo model --a magnetic impurity coupled to a one dimensional wire via exchange coupling-- by using Wilson's numerical renormalization group (NRG) technique. By applying an approach similar to which was used to compute the two impurity problem we managed to improve the bad spatial resolution of the numerical renormalization group method. In this way we have calculated the impurity spin - conduction electron spin correlation function which is a measure of the Kondo compensation cloud whose existence has been a long standing problem in solid state physics. We also present results on the temperature dependence of the Kondo correlations.

published version

References in corpus (1)

• Spectral densities of Kondo impurities in nanoscopic systems

Cited by in corpus (5)

• The numerical renormalization group method for quantum impurity systems
• Friedel oscillations and the Kondo screening cloud
• Splitting of the Kondo resonance in anisotropic magnetic impurities on surfaces
• Kondo "underscreening" cloud: spin-spin correlations around a partially screened magnetic impurity
• Fermi Liquid Theory for the Persistent Current Past a Side-Coupled Quantum Dot