Dynamics of the Pearcey Gaussian beam in linear potential Shumin Ren, Teng Guo, Ru Gao, Pengxiang Wang and Yan Xiao Eur. Phys. J. D, 76 11 (2022) 219 Published online: 18 November 2022 DOI: 10.1140/epjd/s10053-022-00546-9