Scattering of sine-Gordon Breathers on Potential Wells

Details Scattering of sine-Gordon Breathers on Potential Wells Scattering of sine-Gordon Breathers on Potential Wells

2007-10-24

arxiv.org/abs/0710.4391v1

Physics

Condensed Matter

Other Condensed Matter

16 pages, 19 figures

Scientific paper

We analyse the scattering of sine-Gordon breathers on a square potential well. We show that the scattering process depends not only on the vibration frequency of the breather and its incoming speed but also on its phase as well as the depth and width of the well. We show that the breather can pass through the well and exit with a speed different, sometime larger, from the initial one. It can also be trapped and very slowly decay inside the well or bounce out of the well and go back to where it came from. We also show that the breather can split into a kink and an anti-kink pair when it hits the well.

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