Axial current as the origin of quantum intrinsic orbital angular momentum. - Orkash Amat; Nurimangul Nurmamat; Yong-Feng Huang; Cheng-Ming Li; Jin-Jun Geng; Chen-Ran Hu; Ze-Cheng Zou; Xiao-Fei Dong; Chen Deng; Fan Xu; Xiao-li Zhang; Chen Du (CoRR, 2025)