| タイトル | Two-photon coherent states of the radiation field |
| 著者（英） | Yuen, H. P. |
| 著者所属（英） | Massachusetts Inst. of Tech. |
| 発行日 | 1976-06-01 |
| 言語 | eng |
| 内容記述 | The concept of a two-photon coherent state is introduced for applications in quantum optics. It is a simple generalization of the well-known minimum-uncertainty wave packets. The detailed properties of two-photon coherent states are developed and distinguished from ordinary coherent states. These two-photon coherent states are mathematically generated from coherent states through unitary operators associated with quadratic Hamiltonians. Physically they are the radiation states of ideal two-photon lasers operating far above threshold, according to the self-consistent-field approximation. The mean-square quantum noise behavior of these states, which is basically the same as those of minimum-uncertainty states, leads to applications not obtainable from coherent states or one-photon lasers. The essential behavior of two-photon coherent states is unchanged by small losses in the system. The counting rates or distributions these states generate in photocount experiments also reveal their difference from coherent states. |
| NASA分類 | NUCLEAR AND HIGH-ENERGY PHYSICS |
| レポートNO | 76A34591 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/442925 |
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