Programmable wave-based analog computing machine: a metastructure that designs metastructures
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| _version_ | 1866917934631223296 |
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| author | Tzarouchis, Dimitrios C. Edwards, Brian Engheta, Nader |
| author_facet | Tzarouchis, Dimitrios C. Edwards, Brian Engheta, Nader |
| contents | The ability to perform mathematical computations using metastructures is an emergent paradigm that carries the potential of wave-based analog computing to the realm of near-speed-of-light, low-loss, compact devices. We theoretically introduce and experimentally verify the concept of a reconfigurable metastructure that performs analog complex mathematical computations using electromagnetic waves. Reconfigurable, RF-based components endow our device with the ability to perform stationary and non-stationary iterative algorithms. After demonstrating matrix inversion (stationary problem), we use the machine to tackle two major non-stationary problems: root finding with Newton's method and inverse design (constrained optimization) via the Lagrange multiplier method. The platform enables possible avenues for wave-based, analog computations for general linear algebraic problems and beyond in compact, ultrafast, and parallelized ways. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2301_02850 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Programmable wave-based analog computing machine: a metastructure that designs metastructures Tzarouchis, Dimitrios C. Edwards, Brian Engheta, Nader Applied Physics Optics The ability to perform mathematical computations using metastructures is an emergent paradigm that carries the potential of wave-based analog computing to the realm of near-speed-of-light, low-loss, compact devices. We theoretically introduce and experimentally verify the concept of a reconfigurable metastructure that performs analog complex mathematical computations using electromagnetic waves. Reconfigurable, RF-based components endow our device with the ability to perform stationary and non-stationary iterative algorithms. After demonstrating matrix inversion (stationary problem), we use the machine to tackle two major non-stationary problems: root finding with Newton's method and inverse design (constrained optimization) via the Lagrange multiplier method. The platform enables possible avenues for wave-based, analog computations for general linear algebraic problems and beyond in compact, ultrafast, and parallelized ways. |
| title | Programmable wave-based analog computing machine: a metastructure that designs metastructures |
| topic | Applied Physics Optics |
| url | https://arxiv.org/abs/2301.02850 |