Abstract Anomalous transports of dipole in alternating electric fields are investigated by means of numerical calculation of its average angular velocity (or current). Our results show that the alternating electric fields can make the dipole exhibit many interesting transport behaviors. There exist current bifurcation and multiple current reversal phenomena about frequency of the alternating electric fields in the system in the absence of constant bias force, while many platforms appear in the curve of its average angular velocity vs. the force, i.e., multiple mobility transitions phenomenon in the presence of the constant force, dependent on frequencies of the alternating electric fields. Further investigation indicates that the multiple mobility transitions are attributed to the traveling forces on the dipole. Intrinsic physical mechanism and conditions for the characteristic dynamical behaviors to occur are also discussed in detail. These findings will possess crucial significance for optimizing heating control in the alternating electric fields.
Fund: Project supported by the Research Group of Nonequilibrium Statistics (Grant No. 14078206), and Kunming University of Science and Technology, China.
Corresponding Authors:
Lin-Ru Nie
E-mail: lrnie@163.com
Cite this article:
Wei Du(杜威), Kao Jia(贾考), Zhi-Long Shi(施志龙), and Lin-Ru Nie(聂林如) Current bifurcation, reversals and multiple mobility transitions of dipole in alternating electric fields 2023 Chin. Phys. B 32 020505
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