Chiral spin states, hole dynamics, and superconductivity in strongly correlated electronic systems
N. I. Karchev
DOI 10.1103/PhysRevB.44.4576 · Physical Review B
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Abstract
Relation between strongly correlated electronic systems and anyonlike systems is established. A U(1) gauge theory is developed for the frustrated Hubbard model in the limit of infinite on-site Coulomb repulsion. An effective Chern-Simons theory, which describes chiral spin liquids is obtained. The fermions (holes) are coupled to the gauge fields creating thus an anyonlike system. I show that under some circumstances the system is a superconductor for special value of the hole density.
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