Formation and Interaction of Bright Solitons with Shape Changing in a DNA Model

摘要: I explore the collision of localized structures that arise from a general initial solutions in Peyrard- Bishop model. By means semi-discrete approximation, it is shown amplitudes waves are described by discrete nonlinear Schrodinger equation. The corresponding soliton this equation obtained through Hirota’s bilinearization method. These include one- as well two-soliton solutions. Particular attention paid to behaviors displayed solution. Taking one pump and other bubble describes local opening two strands DNA, show that, enhancement bubbles due energy transfer within process. It also underlying solitons undergo fascinating shape changing (intensity redistribution) collision.