Supersymmetric spin operators

Details Supersymmetric spin operators Supersymmetric spin operators

1999-09-06

arxiv.org/abs/cond-mat/9909073v2

Phys.Rev. B62 (2000) 3852-3868

Physics

Condensed Matter

Strongly Correlated Electrons

Typos corrected. Two column version http://www.physics.rutgers.edu/~coleman/susypaper.ps.gz

Scientific paper

10.1103/PhysRevB.62.3852

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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