Ground state of the Kondo model

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 1985 English Publisher:American Physical Society (APS)Journal:Physical Review B, volume 31, pages 7,440-7,441 (issn: 0163-1829,

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Authors: , Mancini; , Mattis;

doi: 10.1103/physrevb.31.7440

pmid: 9935670

Ground state of the Kondo model

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Abstract

The single-impurity Kondo problem is investigated with the use of the nonperturbative Lanczos (tridiagonalization) method. We are able to obtain an explicit expression for the ground-state energy in terms of the Kondo coupling constant J. The method places no restrictions on the range of J.

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