2014/03/26 by Prasun Sarkar, Alok Kumar Maity, Anindita Shit +3
Physics and Astronomy · #cond-mat.soft #physics.chem-ph
paper · pdf · doi:10.1016/j.cplett.2014.03.062
This paper has been withdrawn by the author due to text overlap with arXiv:nlin/0301033 by other authors
arxiv created 2014/03/26 · arxiv updated 2015/06/19
To address the dynamics of a Brownian particle on a periodic symmetric substrate under high-frequency periodic forcing with a vanishing time average, we construct an effective Langevin dynamics by invoking Kapitza-Landau time window. Our result is then exploited to simulate the mobility both for original and effective dynamics which are in good agreement with theoretical predictions. This close agreement and the enhancement of mobility are very robust against the tailoring of amplitude-to-frequency ratio which substantiates the correctness of our calculation. Present results may be illuminating for understanding the dynamics of cold atoms in electromagnetic fields.