Free Fermionic Elliptic Reflection Matrices and Quantum Group Invariance
arXiv:hep-th/9304112 · doi:10.1088/0305-4470/26/14/003
Abstract
Elliptic diagonal solutions for the reflection matrices associated to the elliptic $R$ matrix of the eight vertex free fermion model are presented. They lead through the second derivative of the open chain transfer matrix to an XY hamiltonian in a magnetic field which is invariant under a quantum deformed Clifford--Hopf algebra.
9 pages, Latex