Sridharan, RupaJames, Matthew2015-12-130167-6911http://hdl.handle.net/1885/70755The purpose of this paper is to describe the application of the notion of viscosity solutions to solve the HamiltonJacobiBellman (HJB) equation associated with an important class of optimal control problems for quantum spin systems. The HJB equation thatKeywords: Control problems; Differential topology; Finite difference approximations; First-order; HJB equations; Lie group; Non-differentiable; Nonlinear partial differential equations; Optimal control problem; Optimal controls; Quantum spin systems; Riemannian man Dynamic programming; Numerical method; Optimal control; Quantum spin systems; Viscosity solution201110.1016/j.sysconle.2011.05.0102016-02-24