Quantum phase fluctuation of pointer state in a post-selected measurement system

被引：0
|
作者：
Bayen, Dolan Krishna [1 ,2 ]
机构：
[1] Natl Inst Technol Patna, Dept Phys, Patna 800005, India
[2] Visva Bharati, Dept Phys, Santini Ketan 731235, India
来源：
PHYSICA SCRIPTA | 2023年 / 98卷 / 08期
关键词：
post-selected measurement; complex weak value; pointer state; measured phase operator; nonclassical effect; phase fluctuation; WEAK MEASUREMENTS; SQUEEZED STATES; LIGHT; INVERSION; SPIN; COMPONENT; NUMBER;
D O I：
10.1088/1402-4896/ace85a
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Post-selected measurement is used as a fundamental axiom in quantum optics. Here, a standard model of post-selected measurement with the input coherent pointer state is considered and the influence of weak value parameters on the quantum phase distribution function is studied on the basis of some analytical calculations. On the other hand, the effects of post-selected measurement on quantum phase fluctuations of the input coherent pointer states have been investigated, where the Barnett-Pegg formalism for the measured phase operators is assumed. It has been observed that the quantum phase fluctuations depend on some parameters such as the coupling strength, average value of input photon number, phase angle of the input coherent pointer state and two fundamental parameters of the complex weak value. Lastly, the presence of nonclassical effect is also checked for different parameters of quantum phase fluctuations.
引用
收藏
页数：14
相关论文
共 50 条
  • [31] Analysis of statistical fluctuation in decoy state quantum key distribution system
    Jiao Rong-Zhen
    Tang Shao-Jie
    Zhang Chao
    [J]. ACTA PHYSICA SINICA, 2012, 61 (05)
  • [32] Post-measurement state and entropy in finite quantum systems
    Al Hadhrami, Hilal
    [J]. INTERNATIONAL JOURNAL OF QUANTUM INFORMATION, 2015, 13 (06)
  • [33] Experimental measurement of phase response curve employing fluctuation in rhythmic system
    Ota, Kaiichiro
    Nomura, Masaki
    Aoyagi, Toshio
    [J]. NEUROSCIENCE RESEARCH, 2009, 65 : S232 - S232
  • [34] Reversal of the Weak Measurement of a Quantum State in a Superconducting Phase Qubit
    Katz, Nadav
    Neeley, Matthew
    Ansmann, M.
    Bialczak, Radoslaw C.
    Hofheinz, M.
    Lucero, Erik
    O'Connell, A.
    Wang, H.
    Cleland, A. N.
    Martinis, John M.
    Korotkov, Alexander N.
    [J]. PHYSICAL REVIEW LETTERS, 2008, 101 (20)
  • [35] QUANTUM PHASE MEASUREMENT - A SYSTEM-THEORY PERSPECTIVE
    SHAPIRO, JH
    SHEPARD, SR
    [J]. PHYSICAL REVIEW A, 1991, 43 (07): : 3795 - 3818
  • [36] Measurement-device-independent quantum key distribution with source state errors and statistical fluctuation
    Jiang, Cong
    Yu, Zong-Wen
    Wang, Xiang-Bin
    [J]. PHYSICAL REVIEW A, 2017, 95 (03)
  • [37] Capacity and Entropy of a Retro-Causal Channel Observed in a Twin Mach-Zehnder Interferometer During Measurements of Pre- and Post-Selected Quantum Systems
    Parks, Allen
    Spence, Scott
    [J]. ENTROPY, 2018, 20 (06)
  • [38] The phase state revisited: the Heisenberg limit in a quantum nondemolition measurement and the nonclassical depth of the state
    de Souza, LA
    Baseia, B
    Mizrahi, SS
    [J]. PHYSICS LETTERS A, 2001, 286 (04) : 236 - 240
  • [39] Enhancing the Precision of Phase Estimation by Weak Measurement and Quantum Measurement Reversal in High Dimensional Quantum System
    Qiong Wang
    Zhi He
    [J]. International Journal of Theoretical Physics, 2019, 58 : 114 - 120
  • [40] Enhancing the Precision of Phase Estimation by Weak Measurement and Quantum Measurement Reversal in High Dimensional Quantum System
    Wang, Qiong
    He, Zhi
    [J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2019, 58 (01) : 114 - 120
12345