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Supersymmetric spin operators

P. Coleman·C. Pepin·A. M. Tsvelik
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Abstract

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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P. Coleman, C. Pepin, A. M. Tsvelik. 1999-09-10. Supersymmetric spin operators. https://doi.org/10.1103/physrevb.62.3852

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