Studying the squeezing effect and phase space distribution of single-photon-added coherent state using postselected von Neumann measurement

• URL: http://arxiv.org/abs/2109.05423v2
• Date: Tue, 14 Sep 2021 05:20:52 GMT
• Title: Studying the squeezing effect and phase space distribution of single-photon-added coherent state using postselected von Neumann measurement
• Authors: Wen Jun Xu, Taximaiti Yusufu, and Yusuf Turek
• Abstract summary: It is found that the postselected measurement can increase the nonclassicality of the original state in strong measurement regimes. It is anticipated that this work could may provide an alternate and effective methods to solve state optimization problems based on the postselected von Neumann measurement technique.
• Score: 3.514620900061149
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this paper, ordinary and amplitude-squared squeezing as well as Wigner functions of single-photon-added coherent state after postselected von Neumann measurements are investigated. The analytical results show that the von Neumann type measurement which is characterized by post-selection and weak value can significantly change the squeezing feature of single-photon-added coherent state. It is also found that the postselected measurement can increase the nonclassicality of the original state in strong measurement regimes. It is anticipated that this work could may provide an alternate and effective methods to solve state optimization problems based on the postselected von Neumann measurement technique.

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