| 利用光子相关性降低量子噪声 |
| |
| 引用本文： | 黎永清,王育竹.利用光子相关性降低量子噪声[J].物理学报,1989,38(3):476-480. |
| |
| 作者姓名： | 黎永清 王育竹 |
| |
| 作者单位： | 中国科学院上海光学精密机械研究所 |
| |
| 摘 要： | 本文分析了双光路强度差测量的量子理论,指出可以利用两光束之间的光子相关性来降低强度差测量的量子噪声〈Δ?d2〉,对于具有强相关性的违反Cauchy-Schwarz不等式的光场(简称ACS非经典光场)〈Δ?d2〉可低于经典噪声极限,这种情况可发生在简并四波混频(DFWM)的共轭波和透射波之间。
关键词：
|
| 关 键 词： | 光子 相关性 量子 噪声 量子光学 |
| 收稿时间： | 1988-05-20 |
REDUCTION OF QUANTUM NOISE BY PHOTON CORRELATION |
| |
| LI YONG-QING and WANG YU-ZHU.REDUCTION OF QUANTUM NOISE BY PHOTON CORRELATION[J].Acta Physica Sinica,1989,38(3):476-480. |
| |
| Authors: | LI YONG-QING and WANG YU-ZHU |
| |
| Abstract: | In this paper, the quantum theory of the measurement of the intensity difference between two light beams is analysed. The quantum noise can be reduced by increasing the photon correlation between two beams. For anti-Cauchy-Schwarz light, another type of nonclassical radiation fields, this quantum noise can be reduced to a level below the classical limit. The sub-shot noise may occur in DFWM between the conjugate wave and the transmit wave. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
| 点击此处可从《物理学报》下载免费的PDF全文 |
|
