The chiral edge state and Majorana fermion in hole-doped YBa2Cu3O7−δ mesoscopic strip Xiao-Peng Yang, Guo-Qiao Zha and Shi-Ping Zhou EPL, 122 1 (2018) 17006 Published online: 08 June 2018 DOI: 10.1209/0295-5075/122/17006