Supersymmetric spin operators

Authors
Coleman, P Pepin, C Tsvelik, AM
Citation
P. Coleman et al., Supersymmetric spin operators, PHYS REV B, 62(6), 2000, pp. 3852-3868
Citations number
33
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
6
Year of publication
2000
Pages
3852 - 3868
Database
ISI
SICI code
0163-1829(20000801)62:6<3852:SSO>2.0.ZU;2-1
Abstract
We develop a supersymmetric representation of spin operators which unifies the Schwinger and Abrikosov representations of SU(N) spin operators, allowi ng a second-quantized treatment of representations of the SU(N) group with both symmetric and antisymmetric character. By applying this to the SU(N) K ondo model, we show that it is possible to develop a controlled treatment o f both magnetism and the Kondo effect within a single large-N expansion.