Author: A Alvarez
With J Cuevas, FR Romero and JFR Archilla 

Abstract:
We consider collisions of moving breathers (MBs) in the Peyrard-Bishop DNA model. Two identical stationary breathers, separated by a fixed number of pair-bases, are perturbed and begin to move approaching to each other with the same module of velocity. The outcome is strongly dependent of both the velocity of the MBs and the number of pair-bases that initially separates the stationary breathers. Some collisions result in the generation of a new stationary trapped breather of larger energy. Other collisions result in the generation of two new MBs. In the DNA molecule, the trapping phenomenon could be part of the complex mechanisms involved in the initiation of the transcription processes

COMPLEX 2009, Shangai, China, February 23-25, 2009. 
Poster and short communication by A Alvarez

Proceedings in  J Zhou Ed, Complex Sciences, Vol 4, part 1: 411-416, June 2009
ISBN: 978-3-642-02465-8 (print) 978-3-642-02466-5 (online).
Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
doi:10.1007/978-3-642-02466-5_39