調節可能なオープン量子システムからの物質波の自発的な放出
Ludwig Krinner1, Michael Stewart1, Arturo Pazmiño1
1Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, USA.
Nature
|July 27, 2018
まとめ
超冷たい原子を光学格子で使って 異常な原子崩壊のダイナミクスを実証しました このシステムはオープン量子システムを模倣し,マルコフのダイナミクスを示し,物質波で調節可能な結合状態を示しています.
科学分野:
- 量子物理学
- 原子物理学
- 凝縮物質物理学
背景:
- 開かれた量子システムにおける 興奮した原子の自発的な崩壊は 根本的なプロセスです
- 周期構造におけるギャップ光子の分散は,自発的な衰退を変化させ,分散結合状態を形成する.
- 以前の研究は光学領域に限られていた.
研究 の 目的:
- 物質の波を放つシステムにおける 異常な自発的な崩壊の行動を 示すために
- 光学領域を超えた非マルコフのダイナミクスと消耗的束縛状態を探求する.
- オープンシステムの量子電動力学と多体物理学のシミュレーションのための柔軟なプラットフォームを確立する.
主な方法:
- 光学網の超冷たい原子を人工的エミッターとして利用する.
- バキュームカップリングと興奮エネルギーを制御する.
- 物質波の放出を観測する
主要な成果:
- 指数関数と部分的に可逆の非マルコフ動力学の直接観測.
- 微妙な物質の波を含む 調節可能な結合状態の検出
- 光学システムと類似した自発的な衰退の振る舞いの実証だが,物質波がある.
結論:
- 光学網の超冷たい原子は オープン量子システムを研究するための 汎用的なプラットフォームを提供します
- このシステムは,オープンシステムの量子力学と分散型多体物理学のシミュレーションを可能にします.
- この発見は,分散型結合状態の研究を物質-波領域に拡張する.
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