フロッケ・ハミルトン式 孤立した多体スピンシステムの設計
Sebastian Geier1, Nithiwadee Thaicharoen1,2, Clément Hainaut1
1Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany.
Science (New York, N.Y.)
|November 25, 2021
まとめ
量子フロッケは ハミルトン系を 超冷たい原子ガスに変換します このスピン相互作用の制御は,高度な量子シミュレーションのためのシステム動力学とリラックス行動を修正します.
科学分野:
- 量子物理学
- 原子物理学
- 凝縮物質物理学
背景:
- 相互作用を制御することは 多体システムの量子工学にとって不可欠です
- 時間の周期的な駆動は,システムのハミルトニアンを異なるダイナミクスを持つターゲットハミルトニアンに変換することができます.
研究 の 目的:
- 超冷たい原子ガスのライドバーグ状態を用いたスピンシステムにおけるフロッケの工学を実証する.
- 効果的ハイゼンベルクXYZハミルトニアンの対称性特性を修正する.
- トータルスピンのリラクゼーション行動への影響を観察する.
主な方法:
- Rydberg状態のスピンを持つ超冷たい原子ガスを利用した.
- スピンの操作のシーケンスを通して時間周期的な運転 (フローケート工学) を適用します.
- 半古典的なシミュレーションを行い,観察されたダイナミクスを質的に捉えました.
主要な成果:
- 自然の多体ハミルトニアンから 効果的な標的ハミルトニアンを設計しました
- 効果的ハイゼンベルクXYZハミルトニアンの対称性特性を修正した.
- トータルスピンの リラックス行動の急激な変更が観察されました.
結論:
- フロケット・エンジニアリングは 量子多体系を制御する強力な方法を提供します
- このテクニックは,非均衡のダイナミクスの量子シミュレーションの実施を可能にします.
- 多様なハミルトン式を 単一の実験環境で設計することで 膨大な機会が生まれます
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