Algorithms and Solutions on a Quantum Annealer

Algorithms and Solutions on a Quantum Annealer

Box algorithm for the solution of differential equations on a quantum annealer

Author(s): Siddhartha Srivastava and Veera Sundararaghavan.  Differential equations are ubiquitous in models of physical phenomena. Differential equations are ubiquitous in models of physical phenomena. Applications like steady-state analysis of heat flow and deflection in elastic bars often admit to a second-order differential equation… we discuss the use of a quantum annealer to solve such differential equations by recasting a finite element model in the form of an Ising Hamiltonian. The discrete variables involved in the Ising model introduce complications when defining differential quantities, for instance, gradients involved in scientific computations of solid and fluid mechanics. To address this issue, a graph-coloring-based methodology is proposed which searches iteratively for solutions in a subspace of weak solutions defined over a graph, hereafter called the “box algorithm.” The box algorithm is demonstrated by solving a truss mechanics problem on a D-Wave quantum computer… READ MORE
 
 

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