超伝導量子シミュレータ フォトニック・バンドギャップ・メタマテリアル
Xueyue Zhang1,2, Eunjong Kim1,2, Daniel K Mark3
1Thomas J. Watson, Sr., Laboratory of Applied Physics and Kavli Nanoscience Institute, California Institute of Technology, Pasadena, CA 91125, USA.
Science (New York, N.Y.)
|January 19, 2023
まとめ
超伝導量子シミュレータを開発しました 光子モードを使って 量子混沌のダイナミクスを研究しました このシステムは,調整可能な相互作用を可能にし,統合性からエルゴジ性へのクロスオーバーを明らかにし,ジャンプ範囲を拡大します.
科学分野:
- 量子シミュレーション
- 凝縮物質物理学
- 量子情報科学
背景:
- 量子混沌ダイナミクスを研究するには 調節可能な相互作用範囲を持つ多体量子システムを合成する必要があります
- フォトニックモードのように 非局所的な自由度が 量子システムで 拡張された相互作用を可能にします
- 超伝導回路は量子シミュレータの構築に 有望なプラットフォームです
研究 の 目的:
- 超伝導量子シミュレータを提示します 調節可能な相互作用を持つ一次元ボゼ-ハバードモデルを実現します
- 量子混沌のダイナミクスを調査する 飛び回り範囲と現場の相互作用を制御する
- ハミルトン式学習を,多体解消ダイナミクスの特徴化によって可能にする.
主な方法:
- 超伝導量子シミュレータを使って 拡張可能な光子バンドギャップメタマテリアルで 接続した量子ビット
- 測定結果の特徴化のための個々の場所の制御と読み取りを実行します.
- システムの進化を理解するために,多体消火ダイナミクスから測定統計を分析する.
主要な成果:
- 調節可能なジャンプとオンサイトインタラクションで 一次元のボース・ハバードモデルを実現しました.
- 測定結果の統計を特徴づけることで,現地でのハミルトン式学習が実証される.
- ハッピング範囲が増加するにつれて,統合性からエルゴディシティへの予測されたクロスオーバーを観察した.
結論:
- 開発された量子シミュレータは,出現したランダム性と混沌とした多体進化を研究するためのアクセシブルなハミルトニアンを拡張します.
- この研究は,超伝導回路と光子メタマテリアルの潜在能力を高度な量子シミュレーションに強調しています.
- 相互作用範囲を調整する能力は,統合可能な量子ダイナミクスからエルゴディック量子ダイナミクスへの移行を探求するために不可欠です.
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