Amplitude-squared squeezing of Schrödinger cat states via postselected von Neumann measurementNuerbiya Aishan, Taximaiti Yusufu and Yusuf TurekEur. Phys. J. Plus, 137 2 (2022) 221DOI: https://doi.org/10.1140/epjp/s13360-022-02441-z