Computational Bounds to Light–Matter Interactions via Local Conservation Laws
| Autor: | Owen D. Miller, Zeyu Kuang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Conservation law
Scattering Iterative method Computer science Computation Bandwidth (signal processing) FOS: Physical sciences General Physics and Astronomy 01 natural sciences Linear map 0103 physical sciences Rapid convergence Applied mathematics 010306 general physics Material properties Physics - Optics Optics (physics.optics) |
| Zdroj: | Physical Review Letters. 125 |
| ISSN: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.125.263607 |
| Popis: | We develop a computational framework for identifying bounds to light--matter interactions, originating from polarization-current-based formulations of local conservation laws embedded in Maxwell's equations. We propose an iterative method for imposing only the maximally violated constraints, enabling rapid convergence to global bounds. Our framework can identify bounds to the minimum size of any scatterer that encodes a specific linear operator, given only its material properties, as we demonstrate for the optical computation of a discrete Fourier transform. It further resolves bounds on far-field scattering properties over any arbitrary bandwidth, where previous bounds diverge. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|