New exact diagram approach to the Kondo problem

Research output: Contribution to journalArticle

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Abstract

Described is the physics behind an new exact Feynman diagram approach to the Kondo problem. The method corresponds to a certain self-consistent parquet approximation. Here relatively simple arguments are used to justify the diagram results. The calculation of the static susceptibility and specific heat is described. The cross-over ratio W′=( π e) 1 2 and Wilson ratio R=2 are given exactly.

Original languageEnglish (US)
Pages (from-to)1243-1244
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume54-57
Issue numberPART 3
DOIs
StatePublished - 1986

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Feynman diagrams
Specific heat
Physics
diagrams
specific heat
magnetic permeability
heat
physics
approximation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

New exact diagram approach to the Kondo problem. / Barnes, Stewart.

In: Journal of Magnetism and Magnetic Materials, Vol. 54-57, No. PART 3, 1986, p. 1243-1244.

Research output: Contribution to journalArticle

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