Amplitude-squared squeezing of Schrödinger cat states via postselected von Neumann measurement

被引：0
作者：
Nuerbiya Aishan
Taximaiti Yusufu
Yusuf Turek
机构：
[1] Xinjiang Normal University,School of Physics and Electronic Engineering
来源：
The European Physical Journal Plus | / 137卷
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摘要：
We know that the original Schrödinger cat states have no amplitude-squared squeezing. In this paper, we investigate the amplitude-squared squeezing of Schrödinger cat states using postselected von Neumann measurement. The results show that after postselected von Neumann measurement, the amplitude-squared squeezing of Schrödinger cat states change dramatically and this can be considered a result of weak value amplification. The squeezing effect also investigated by studying the Wigner function of Schrödinger cat states after postselected measurement.
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