誤差を許容する普遍的な量子計算への道
Earl T Campbell1, Barbara M Terhal2,3, Christophe Vuillot2
1Department of Physics and Astronomy, University of Sheffield, Sheffield, UK.
Nature
|September 15, 2017
まとめ
研究者たちは 情報を処理できる 容認性のある量子コンピュータを開発しています 現在の取り組みは 騒音に耐える論理量子ビットの作成に焦点を当てています これは複雑な計算のための 信頼性の高い量子プロセッサの構築に向けた重要なステップです
科学分野:
- 量子コンピューティング
- 情報処理
- 欠陥耐性アーキテクチャ
背景:
- 実践的な量子コンピュータには 情報の記憶だけでなく 処理能力も必要です
- 量子システムにおけるノイズによるエラーの拡散を防ぐために欠陥耐性アーキテクチャは不可欠です.
- 現在の研究は 量子計算の基本要素である 騒音に耐える 論理量子ビットへと進んでいます
研究 の 目的:
- 量子デバイスを単なるメモリユニットから機能的なプロセッサに変換するための要件を概説します.
- 論理量子ビットで普遍的な量子ゲートセットを実行するための方法を調査する.
- 既存のゲート導入提案のリソース需要を評価し,代替案を探求する.
主な方法:
- 騒音耐性論理量子ビットの 現在の実験の進展を 検討する
- マジックステート蒸留とカラーコード技術を含む,普遍的なゲート実装の主要な提案を分析する.
- モジュラーアーキテクチャ内の高次元量子コードを使用する代替スキームの探索.
主要な成果:
- 現在の実験では 騒音に耐える論理量子ビットへの 最初のステップが示されています
- 普遍的なゲート実装 (マジックステート蒸留,カラーコード) の主要な提案は,高いリソース要求で注目されています.
- モジュラーアーキテクチャで高次元量子コードを使用する代替アプローチは潜在的ですが,さらなる調査が必要です.
結論:
- 量子デバイスをプロセッサに変換するには,普遍的なゲート操作を定義する必要があります.
- ゲート導入の既存の方法は 重要なリソースの課題に直面しています
- 高次元の量子コードやモジュラーアーキテクチャを含む代替スキームに関するさらなる研究は,実用的な量子コンピューティングの進歩に不可欠です.
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