Advantages of nonclassical pointer states in postselected weak measurements
文献类型：期刊论文
| 作者 | Turek, Y; Maimaiti, W; Shikano, Y; Sun, CP ; Al-Amri, M
|
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2015 |
| 卷号 | 92期号:2页码:22109 |
| 通讯作者 | Turek, Y (reprint author), King Abdulaziz City Sci & Technol, NCAP, Riyadh 11442, Saudi Arabia. |
| 英文摘要 | We investigate, within the weak measurement theory, the advantages of nonclassical pointer states over semiclassical ones for coherent, squeezed vacuum, and Schrodinger cat states. These states are utilized as pointer states for the system operator (A) over cap with property (A) over cap (2) = (I) over cap, where (I) over cap represents the identity operator. We calculate the ratio between the signal-to-noise ratio of nonpostselected and postselected weak measurements. The latter is used to find the quantum Fisher information for the above pointer states. The average shifts for those pointer states with arbitrary interaction strength are investigated in detail. One key result is that we find the postselected weak measurement scheme for nonclassical pointer states to be superior to semiclassical ones. This can improve the precision of the measurement process. |
| 学科主题 | Optics ; Physics |
| 类目[WOS] | Optics ; Physics, Atomic, Molecular & Chemical |
| 关键词[WOS] | VALUES ; LIGHT ; SPIN ; INTERFEROMETER ; REALIZATION ; INEQUALITY ; VIOLATION ; PRECISION ; PHOTONS |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/20896]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Turek, Y,Maimaiti, W,Shikano, Y,et al. Advantages of nonclassical pointer states in postselected weak measurements[J]. PHYSICAL REVIEW A,2015,92(2):22109. |
| APA | Turek, Y,Maimaiti, W,Shikano, Y,Sun, CP,&Al-Amri, M.(2015).Advantages of nonclassical pointer states in postselected weak measurements.PHYSICAL REVIEW A,92(2),22109. |
| MLA | Turek, Y,et al."Advantages of nonclassical pointer states in postselected weak measurements".PHYSICAL REVIEW A 92.2(2015):22109. |
入库方式： OAI收割
来源：理论物理研究所
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