Bosonization of the Kondo problem

Eduardo Fradkin, Cecilia von Reichenbach, Fidel A. Schaposnik

Research output: Contribution to journalArticlepeer-review


We present a bosonized action for the SU(N) Kondo problem within the framework of path-integral non-abelian bosonization. We show that the model is equivalent to a level k = 2N + 1 Wess-Zumino-Witten theory coupled to impurity fields. We show that the system is scale invariant in the strong-coupling limit by explicit computation of the β-function. We calculate the magnetic susceptibility and the low-temperature specific heat in the same limit.

Original languageEnglish (US)
Pages (from-to)710-734
Number of pages25
JournalNuclear Physics, Section B
Issue number3
StatePublished - Apr 17 1989
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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