%A Qiu Tong(邱桐),Huang Ji-Ping(黄吉平) %T Unprecedentedly rapid transport of single-file rolling water molecules %0 Journal Article %D 2015 %J Front. Phys. %J Frontiers of Physics %@ 2095-0462 %R 10.1007/s11467-015-0511-z %P 106102-${article.jieShuYe} %V 10 %N 5 %U {https://journal.hep.com.cn/fop/EN/10.1007/s11467-015-0511-z %8 2015-10-26 %X

The realization of rapid and unidirectional single-file water-molecule flow in nanochannels has posed a challenge to date. Here, we report unprecedentedly rapid unidirectional single-file water-molecule flow under a translational terahertz electric field, which is obtained by developing a Debye doublerelaxation theory. In addition, we demonstrate that all the single-file molecules undergo both stable translation and rotation, behaving like high-speed train wheels moving along a railway track. Independent molecular dynamics simulations help to confirm these theoretical results. The mechanism involves the resonant relaxation dynamics of H and O atoms. Further, an experimental demonstration is suggested and discussed. This work has implications for the design of high-efficiency nanochannels or smaller nanomachines in the field of nanotechnology, and the findings also aid in the understanding and control of water flow across biological nanochannels in biology-related research.