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Turek, Y; Maimaiti, W; Shikano, Y; Sun, CP; Al-Amri, M; Turek, Y (reprint author), King Abdulaziz City Sci & Technol, NCAP, Riyadh 11442, Saudi Arabia.
Advantages of nonclassical pointer states in postselected weak measurements
Source PublicationPHYSICAL REVIEW A
Language英语
AbstractWe 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.
2015
Volume92Issue:2Pages:22109
Subject AreaOptics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevA.92.022109
Indexed BySCI
Funding OrganizationCenter for the Promotion of Integrated Sciences (CPIS) of Sokendai ; Center for the Promotion of Integrated Sciences (CPIS) of Sokendai ; Center for the Promotion of Integrated Sciences (CPIS) of Sokendai ; Center for the Promotion of Integrated Sciences (CPIS) of Sokendai ; ICRR Joint Research from The University of Tokyo ; ICRR Joint Research from The University of Tokyo ; ICRR Joint Research from The University of Tokyo ; ICRR Joint Research from The University of Tokyo ; NINS Youth Collaborative Project ; NINS Youth Collaborative Project ; NINS Youth Collaborative Project ; NINS Youth Collaborative Project ; King Abdulaziz City for Science and Technology (KACST) ; King Abdulaziz City for Science and Technology (KACST) ; King Abdulaziz City for Science and Technology (KACST) ; King Abdulaziz City for Science and Technology (KACST)
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/20896
Collection理论物理所科研产出_SCI论文
Corresponding AuthorTurek, Y (reprint author), King Abdulaziz City Sci & Technol, NCAP, Riyadh 11442, Saudi Arabia.
Recommended Citation
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,&Turek, Y .(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.
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