General approach of weak-to-strong measurement transition for Fock-state-based pointer states

Turek, Yusuf; Yuanbek, Janarbek; Abliz, Ahmad

doi:10.1016/j.physleta.2023.128663

Cited by 3 publications

(1 citation statement)

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“…The present investigation takes care of the dynamical phase not the geometrical approach. Recently, in order to better visualize the weak-to-strong transition, the Husimi-Kano Q function (the phase space function) has been investigated theoretically for coherent pointer states [57]. Actually, Pancharatnamʼs approach is known as geometric phase [58].…”

Section: Discussionmentioning

confidence: 99%

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

Bayen

2023

Phys. Scr.

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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.

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Section: Discussionmentioning

confidence: 99%