Quantum cloning machines
文献类型：期刊论文
| 作者 | Fan, H |
| 刊名 | QUANTUM COMPUTATION AND INFORMATION: FROM THEORY TO EXPERIMENT
 |
| 出版日期 | 2006 |
| 卷号 | 102页码:63 |
| 关键词 | NO-CLONING PROBABILISTIC CLONING OPTIMAL UNIVERSAL STATE ESTIMATION MIXED STATES PURE STATES INFORMATION SEPARABILITY SYSTEMS THEOREM |
| ISSN号 | 0303-4216 |
| 通讯作者 | Fan, H (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | Single-photon detectors are of great importance in spectroscopy, laser ranging, astronomy and wherever weak light detection is required, so a precise knowledge of their quantum efficiency is essential, but their calibration is by no means trivial. Traditional methods need a black body radiation source or a highly attenuated laser beam as a reference standard, or an already calibrated reference detector. It is well known that absolute measurement of the quantum efficiency, absolute in the sense that the calibration is independent of any radiometric standard or the properties of another detector, can be performed using entangled twin photons generated in optical spontaneous parametric down-conversion together with a reference detector. We have performed the first proof-of-principle experiment to determine the quantum efficiency by which no second detector or reference standard is required. This absolute self-calibration method is also based on the time correlation of photons emitted in parametric down-conversion, but with the introduction of a suitable time delay between the arrival times of the twin photons. Furthermore, we describe a scheme for absolute self-calibration of the quantum efficiency at different wavelengths by means of a pulsed source of nondegenerate down-converted photons. This method should have even greater potential for applications. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51645]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Fan, H. Quantum cloning machines[J]. QUANTUM COMPUTATION AND INFORMATION: FROM THEORY TO EXPERIMENT,2006,102:63. |
| APA | Fan, H.(2006).Quantum cloning machines.QUANTUM COMPUTATION AND INFORMATION: FROM THEORY TO EXPERIMENT,102,63. |
| MLA | Fan, H."Quantum cloning machines".QUANTUM COMPUTATION AND INFORMATION: FROM THEORY TO EXPERIMENT 102(2006):63. |
入库方式： OAI收割
来源：物理研究所
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