Possibility of the existence of the rogue wave and the super rogue wave in granular matter Juan-Fang Han, Tao Liang and Wen-Shan Duan Eur. Phys. J. E, 42 1 (2019) 5 Published online: 17 January 2019 DOI: 10.1140/epje/i2019-11764-4