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Pulse-shape effects on photon-photon interactions in nonlinear optical quantum gates
https://hiroshima.repo.nii.ac.jp/records/2008044
https://hiroshima.repo.nii.ac.jp/records/2008044c9110597-f097-40e8-b468-7c6a52dc0a7e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
PhysRevA_80_013822.pdf (280.0 KB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-18 | |||||||||
| タイトル | ||||||||||
| タイトル | Pulse-shape effects on photon-photon interactions in nonlinear optical quantum gates | |||||||||
| 言語 | en | |||||||||
| 作成者 |
Hofmann, Holger F
× Hofmann, Holger F
× Nishitani, Hitoshi
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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) 2009 American Physical Society. | |||||||||
| 主題 | ||||||||||
| 主題Scheme | NDC | |||||||||
| 主題 | 540 | |||||||||
| 内容記述 | ||||||||||
| 内容記述 | Ideally, strong nonlinearities could be used to implement quantum gates for photonic qubits by well-controlled two-photon interactions. However, the dependence of the nonlinear interaction on frequency and time makes it difficult to preserve a coherent pulse shape that could justify a single-mode model for the time-frequency degree of freedom of the photons. In this paper, we analyze the problem of temporal multimode effects by considering the pulse shape of the average output field obtained from a coherent input pulse. It is shown that a significant part of the two-photon state transformation can be derived from this semiclassical description of the optical nonlinearity. The effect of a nonlinear system on a two-photon state can then be determined from the density-matrix dynamics of the coherently driven system using input-output theory. As an example, the resonant nonlinearity of a single two-level atom is characterized. The results indicate that the most efficient nonlinear effect may not be the widely studied single-mode phase shift, but the transfer of one of the photons to an orthogonal mode distinguished by its temporal and spectral properties. | |||||||||
| 言語 | en | |||||||||
| 出版者 | ||||||||||
| 出版者 | Amer Physical Soc | |||||||||
| 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.80.013822 | |||||||||
| 関連情報 | ||||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | http://dx.doi.org/10.1103/PhysRevA.80.013822 | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 1050-2947 | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AA10764867 | |||||||||
| 書誌情報 |
Physical Review A Physical Review A 巻 80, 号 1, 発行日 2009-07-23 |
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| 旧ID | 28888 | |||||||||
