Comment on "Soliton ratchets induced by excitation of internal modes"
Exactly Solvable and Integrable Systems
2009-11-10 v1 Pattern Formation and Solitons
Abstract
Very recently Willis et al. [Phys. Rev. E {\bf 69}, 056612 (2004)] have used a collective variable theory to explain the appearance of a nonzero energy current in an ac driven, damped sine-Gordon equation. In this comment, we prove rigorously that the time-averaged energy current in an ac driven nonlinear Klein-Gordon system is strictly zero.
Keywords
Cite
@article{arxiv.nlin/0410021,
title = {Comment on "Soliton ratchets induced by excitation of internal modes"},
author = {Niurka R. Quintero and Bernardo Sánchez-Rey and Jesús Casado-Pascual},
journal= {arXiv preprint arXiv:nlin/0410021},
year = {2009}
}
Comments
3 pages, 1 figure, Submitted to Phys. Rev. E