部分コヘランスは,並列光子コンピューティングを強化します
Bowei Dong1,2, Frank Brückerhoff-Plückelmann3, Lennart Meyer3
1Department of Materials, University of Oxford, Oxford, UK.
Nature
|July 31, 2024
まとめ
この研究は,計算並列性を強化するために,部分的に一貫した光を使用する光学収束処理システムを実証しています. このアプローチは伝統的な考え方に異議を唱え,要求の少ない光源で高通量フォトニックコンピューティングを可能にします.
科学分野:
- 光学について
- 光学コンピューティング
- 人工知能のハードウェア
背景:
- 通信やセンシングなどのアプリケーションでは 光学的なコヒーレンス制御が不可欠です
- 現在の統合光子加速器は,最適な性能のために高度に一貫した光源に依存しています.
- 一般的な見解では,光源の相関性が向上すると,システムの機能性が向上する.
研究 の 目的:
- 部分的に一貫した光を使用する光学コンボリューション処理システムを導入する.
- フォトニック加速器の 高コヘランスの必要性を 挑戦するためです
- より大きなフォトニックテンサーコアと 高通量コンピューティングを可能にします
主な方法:
- 部分的に一貫した光を利用した 光学収束処理システムを開発した.
- 2つの光子プラットフォームでシステムを実装しました:相変化材料の光子メモリと電吸収調節器 (EAM) のシリコン光子.
- パーキンソン病の歩行分類とMNISTの手書きの数字認識に関するシステムの性能を評価した.
主要な成果:
- パーキンソン病患者の歩行 (92. 2%) と部分的に一貫した光を使用したMNISTの数字 (92. 4%) を分類する高精度を達成しました.
- パラレルコンヴォルション操作と高い処理速度 (0.108 TOPS) を実証した.
- 帯域幅の利用を最適化しました
結論:
- 部分的にコヘランスな光は,光子系における計算並列性を,重要な精度損失なしに高めることができます.
- このアプローチは,光子加速器における高コヒーレンスへの従来の依存に挑戦しています.
- より複雑な光源の使用を可能にし,高通量フォトニックコンピューティングのシステム要求を削減します.
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