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Quantum control of atomic systems by homodyne detection and feedback
https://hiroshima.repo.nii.ac.jp/records/2008057
https://hiroshima.repo.nii.ac.jp/records/2008057d3a87c5b-842d-495b-96fa-497e7905de42
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
PhysRevA_57_4877.pdf (176.2 KB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||||
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| 公開日 | 2023-03-18 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Quantum control of atomic systems by homodyne detection and feedback | |||||||||||
| 言語 | en | |||||||||||
| 作成者 |
Hofmann, Holger Friedrich
× Hofmann, Holger Friedrich
× Mahler, Günter
× Hess, Ortwin
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| アクセス権 | ||||||||||||
| アクセス権 | open access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
| 権利情報 | ||||||||||||
| 権利情報 | Copyright (c) 1998 American Physical Society. | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述 | We investigate the possibilities of preserving and manipulating the coherence of atomic two-level systems by ideal projective homodyne detection and feedback. For this purpose, the photon emission process is described on time scales much shorter than the lifetime of the excited state using a model based on Wigner- Weisskopf theory. The backaction of this emission process is analytically described as a quantum diffusion of the Bloch vector. It is shown that the evolution of the atomic wave function can be controlled completely using the results of homodyne detection. This allows the stabilization of a known quantum state or the creation of coherent states by a feedback mechanism. However, the feedback mechanism can never compensate the dissipative effects of quantum fluctuations even though the coherent state of the system is known at all times. | |||||||||||
| 言語 | en | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | American Physical Society | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1103/PhysRevA.57.4877 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | http://dx.doi.org/10.1103/PhysRevA.57.4877 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 1094-1622 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AA10764867 | |||||||||||
| 開始ページ | ||||||||||||
| 開始ページ | 4877 | |||||||||||
| 書誌情報 |
Physical Review A. Atomic, Molecular, and Optical Physics Physical Review A. Atomic, Molecular, and Optical Physics 巻 57, 号 6, p. 4877-4888, 発行日 1998-06 |
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| 旧ID | 18699 | |||||||||||
