LETTER TO THE EDITOR: Local U(1) symmetry in Y(SO(5)) associated with the massless Thirring model and its Bethe ansatz
The massless Thirring model associated with SO(5) is solved in terms of the local U(1) symmetry. The local U(1) symmetry is related to q-deformation of four-component field operators due to the nonlinear interaction for different internal degrees of freedom. The Bethe ansatz wavefunction is also discussed. In addition, the local U(1) symmetry in the Yangian associated with SO(5)(Y(SO(5))) is explored.