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Volumn 81, Issue 3, 2010, Pages

Slave spins away from half filling: Cluster mean-field theory of the Hubbard and extended Hubbard models

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EID: 77954808444     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.81.035106     Document Type: Article
Times cited : (100)

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    • It is worth noting that the auxiliary spin has nothing to do with the physical spin, that is treated here just as a label. In fact a slave-spin variable is introduced for every fermion species, taking into account the fermion spin multiplicity, so that slave-spins are also labeled with a spin index, i.e., S iσ z.
    • It is worth noting that the auxiliary spin has nothing to do with the physical spin, that is treated here just as a label. In fact a slave-spin variable is introduced for every fermion species, taking into account the fermion spin multiplicity, so that slave-spins are also labeled with a spin index, i.e., S i σ z.
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