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Supersymmetric spin operators

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arxiv cond-mat/9909073 v2 pith:PDNEAIKC submitted 1999-09-06 cond-mat.str-el hep-th

P. Coleman , C. Pepin , A. M. Tsvelik This is my paper · ORCID
classification cond-mat.str-elhep-th
keywords operatorsspindevelopkondorepresentationssupersymmetrictreatmentabrikosov
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We develop a supersymmetric representation of spin operators which unifies the Schwinger and Abrikosov representations of SU(N) spin operators, allowing a second-quantized treatment of representations of the SU(N) group with both symmetric and antisymmetric character. By applying this to the SU(N) Kondo model, we show that it is possible to develop a controlled treatment of both Magnetism and the Kondo effect within a single large N expansion.

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