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Iterative eigensolver using fixed-point photonic primitive
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DOI：10.1364/OL.506704.png)
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Photonic computing has potential advantages in speed and energy consumption yet is subject to inaccuracy due to the limited equivalent bitwidth of the analog signal. In this Letter, we demonstrate a configurable, fixed-point coherent photonic iterative solver for numerical eigenvalue problems using shifted inverse iteration. The photonic primitive can accommodate arbitrarily sized sparse matrix-vector multiplication and is deployed to solve eigenmodes in a photonic waveguide structure. The photonic iterative eigensolver does not accumulate errors from each iteration, providing a path toward implementing scientific computing applications on photonic primitives. (c) 2024 Optica Publishing Group
Keyword:
MATRIX MULTIPLICATION
INVERSE
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
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