閉じ込められたイオンの2つのフォノンによるHong-Ou-Mandel干渉
Kenji Toyoda1, Ryoto Hiji1, Atsushi Noguchi1
1Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
Nature
|November 6, 2015
まとめ
研究者らは,閉じ込められたイオン内のフォノンでホン・オ・マンデル効果を実証し,そのボゾン性質を確認した. この2フォノン干渉は 量子情報処理と量子シミュレーションに 新たな道を開きます
科学分野:
- 量子物理学
- 凝縮物質物理学
- 量子光学
背景:
- 量子統計は粒子の振る舞いを決定します 特に干渉現象においてです
- Hong-Ou-Mandel効果は,光子を使ってボソニック粒子の束を演じています.
- ボーゼ-アインシュタインの統計に 従うことが知られている.
研究 の 目的:
- ホン・ウ・マンデル効果の フォノン対称性を示すために
- フォノンが区別できない ボゾン粒子のように振る舞うことを確認するために
- 量子情報の媒介者としてのフォノンの可能性を探求する.
主な方法:
- 捕まったイオンを使って フォノンのシステムを作りました
- イオン-イオンクーロン反発によるフォノンのビーム-スプリッター変換を実装した.
- 2フォノン量子干渉実験を行いました
主要な成果:
- 2つのイオンサイト間のフォノンの偶然のほぼ完全な消失を観察しました.
- 捕まったイオン系における ボゾン性質を確認した
- 純粋な量子二粒子の干渉効果を証明した
結論:
- 閉じ込められたイオンのフォノンは,光子と類似した区別がつかないボゾンの振る舞いを表します.
- この研究は フォノンを潜在的量子情報媒介体として 検証しています
- この発見は量子シミュレーションと アナログ量子計算に 影響を及ぼします
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