Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1996-01-31
Nucl.Phys. B478 (1996) 401-430
Physics
High Energy Physics
High Energy Physics - Theory
26 pages, AMSLaTex
Scientific paper
10.1016/0550-3213(96)00387-2
The conformal limit over an anti-ferromagnetic vacuum of the fermionic spin $\frac{1}{2}$ Calogero-Sutherland Model is derived by using the wedge product formalism. The space of states in the conformal limit is identified with the Fock space of two complex fermions, or, equivalently, with a tensor product of an irreducible level-1 module of $\slt$ and a Fock space module of the Heisenberg algebra.The Hamiltonian and the Yangian generators of the Calogero-Sutherland Model are represented in terms of $\slt$ currents and bosons. At special values of the coupling constant they give rise to the Hamiltonian and the Yangian generators of the conformal limit of the Haldane-Shastry Model acting in an irreducible level-1 module of $\slt$. At generic values of the coupling constant the space of states is decomposed into irreducible representations of the Yangian.
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