3 years ago

Family of Potentials with Power-Law Kink Tails.

Avinash Khare, Avadh Saxena

We provide examples of a large class of one dimensional higher order field theories with kink solutions which asymptotically have a power-law tail either at one end or at both ends. We provide analytic solutions for the kinks in a few cases but mostly provide implicit solutions. We also provide examples of a family of potentials with two kinks, both of which have power law tails either at both ends or at one end. In addition, we show that for kinks with a power law tail at one end or both the ends, there is no gap between the zero mode and the continuum of the corresponding stability equation. This is in contrast to the kinks with exponential tail at both the ends in which case there is always a gap between the zero mode and the continuum.

Publisher URL: http://arxiv.org/abs/1810.12907

DOI: arXiv:1810.12907v2

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