Emulating the Deutsch-Josza algorithm with an inverse-designed terahertz gradient-index lens

An all-dielectric photonic metastructure is investigated for application as a quantum algorithm emulator (QAE) in the terahertz frequency regime; specifically, we show implementation of the Deustsh-Josza algorithm. The design for the QAE consists of a gradient-index (GRIN) lens as the Fourier transf...

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Bibliographic Details
Published inOptics express Vol. 31; no. 18; p. 29515
Main Authors Blackwell, Ashley N., Yahiaoui, Riad, Chen, Yi-Huan, Chen, Pai-Yen, Searles, Thomas A., Chase, Zizwe A.
Format Journal Article
LanguageEnglish
Published United States Optical Society of America 28.08.2023
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Summary:An all-dielectric photonic metastructure is investigated for application as a quantum algorithm emulator (QAE) in the terahertz frequency regime; specifically, we show implementation of the Deustsh-Josza algorithm. The design for the QAE consists of a gradient-index (GRIN) lens as the Fourier transform subblock and patterned silicon as the oracle subblock. First, we detail optimization of the GRIN lens through numerical analysis. Then, we employed inverse design through a machine learning approach to further optimize the structural geometry. Through this optimization, we enhance the interaction of the incident light with the metamaterial via spectral improvements of the outgoing wave.
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USDOE
SC0012704
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.495919