Periodic driving induced helical Floquet channels with ultracold atoms in momentum spaceTeng Xiao, Dizhou Xie, Wei Gou, Tao Chen, Tian-Shu Deng, Wei Yi and Bo YanEur. Phys. J. D, 74 7 (2020) 152DOI: https://doi.org/10.1140/epjd/e2020-10019-6