プログラム可能なナノフォトニックチップ上の多くの光子を持つ量子回路

J M Arrazola¹, V Bergholm², K Brádler²

¹Xanadu, Toronto, Ontario, Canada. juanmiguel@xanadu.ai.

Nature

|March 4, 2021

まとめ

プログラム可能な光子量子コンピューティングシステムを導入しましたこの新しいハードウェア・ソフトウェア・プラットフォームは,高度な量子アルゴリズムのための高フォトン数量子回路操作を可能にします.

科学分野:

量子コンピューティング
統合ナノフォトニクス
量子情報処理

背景:

現在の光子量子コンピュータは,決定論,光子数,ゲートプログラミングの限界に直面しています.
ハードウェアのイノベーションを推進する実践的な量子コンピューティングアプリケーションの需要が増えています

研究の目的:

多光子量子回路操作を実行するためのフルスタックハードウェア・ソフトウェアシステムを提示します.
既存の光子量子コンピューティングプラットフォームの限界を克服するためです
複雑な量子アルゴリズムの遠隔実行を可能に

主な方法:

室温で動作するプログラム可能な統合ナノフォトニックチップの開発.
完全自動化されたリモートアクセス制御システムとの統合
強く圧縮された真空状態と多フォトンの検出のための高いサンプリングレートを利用します.

主要な成果:

最大8モードの量子回路操作の実証
これまでのプログラム可能な量子光学システムを上回る多光子検出率と数値を達成した.
デバイスの出力の非古典性を確認した.

結論:

開発されたプラットフォームは,光子量子技術のスケーラブルな打ち上げ台として機能します.
ガウスのボゾンサンプリング,分子振動スペクトル,グラフ類似性の実証実験が成功しました.
このシステムは,多くの光子レベルで一般的でプログラム可能な量子計算を可能にします.

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