Physical Review Letters
Quantum Hamiltonians Associated with Finite-Dimensional Lie Algebras and Factorized S Matrices
David V. Chudnovsky, Gregory V. Chudnovsky
Abstract
Quantum Hamiltonian systems of lattice type are considered which are associated with classical finite-dimensional Lie algebras [like MH(2), SO(3), etc.], and possess complete integrability properties. The canonical Heisenberg ${p}_{n}$, ${q}_{n}$ variables are found for these Hamiltonian systems and it is shown how to construct their $S$ matrices. These new Hamiltonians are generalizations of the quantum Toda lattice Hamiltonian as well as $\mathrm{XXX}$ models of statistical mechanics.