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- W4387389664 abstract "Many engineering problems involve solving large linear systems of equations. Conjugate gradient (CG) is one of the most popular iterative methods for solving such systems. However, CG typically requires a good preconditioner to speed up convergence. One such preconditioner is the sparse approximate inverse (SPAI). In this paper, we explore the computation of an SPAI on quantum annealing machines by solving a series of quadratic unconstrained binary optimization (QUBO) problems. Numerical experiments are conducted using both well-conditioned and poorly-conditioned linear systems arising from a 2D finite difference formulation of the Poisson problem." @default.
- W4387389664 created "2023-10-06" @default.
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- W4387389664 date "2023-10-03" @default.
- W4387389664 modified "2023-10-07" @default.
- W4387389664 title "Computing a Sparse Approximate Inverse on Quantum Annealing Machines" @default.
- W4387389664 doi "https://doi.org/10.48550/arxiv.2310.02388" @default.
- W4387389664 hasPublicationYear "2023" @default.
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