Impurity Entanglement Entropy and the Kondo Screening Cloud

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dc.creatorSørensen, Erik S.
dc.creatorChang, Ming-Shyang
dc.creatorLaflorencie, Nicolas
dc.creatorAffleck, Ian
dc.date2006-06-28
dc.date.accessioned2026-07-07T07:45:42Z
dc.date.available2026-07-07T07:45:42Z
dc.descriptionThe screening of an impurity spin by conduction electrons is associated with the formation of a large Kondo screening cloud, of size xi_K. We study the quantum entanglement between a region of size r surrounding the impurity and the rest of the sample, (of total size R) using Density Matrix Renormalization Group and analytic methods. The corresponding "impurity entanglement entropy", S_{imp}, is shown to be a universal scaling function of r/xi_K and r/R. We calculate this universal function using Fermi liquid theory in the regime xi_K << r.
dc.description5 pages, 5 figures (eps), RevTeX 4.0
dc.identifierhttps://arxiv.org/abs/cond-mat/0606705
dc.identifierhttp://arxiv.org/abs/cond-mat/0606705
dc.identifierJ. Stat. Mech. (2007) L01001
dc.identifierdoi:10.1088/1742-5468/2007/01/L01001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/123619
dc.subjectStrongly Correlated Electrons
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleImpurity Entanglement Entropy and the Kondo Screening Cloud
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