Journal of the Physical Society of Japan
Classical Poisson Bracket Algebra and Quantum Affine Gaudin Model
Asesh Roy Chowdhury, A. Ghose Chowdhury
Abstract
We have analysed an affine Gaudin Model with the help of a L -operator with entries belonging to affine Gaudin algebra. It is observed that the usual classical r -matrix does not exist, but an extended version due to Maillet and Vega (called the ( r - s ) algebra) can be defined. The subsequent quadratic algebra of the monodromy matrices are then used to set up the Algebraic Bethe Ansatz for the model. Relation to other similar model are discussed.