Head butting sheep: Kink Collisions in the Presence of False Vacua

Apr 28, 2016
28 pages
Published in:
  • J.Phys.A 49 (2016) 36, 365203
  • Published: Aug 18, 2016
e-Print:
Report number:
  • UDEM-GPP-TH-16-251,
  • YGHP-16-04

Citations per year

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Abstract: (IOP)
We investigate numerically kink collisions in a 1 + 1 dimensional scalar field theory with multiple vacua. The domain wall model we are interested in involves two scalar fields and a potential term built from an asymmetric double well and (double) sine-Gordon potential together with an interaction term. Depending on the initial kink setup and impact velocities, the model allows for a wide range of scattering behaviours. Kinks can repel each other, annihilate, form true or false domain walls and reflect off each other.
Note:
  • Matches version published in J. Phys. A. 32 pages, 20 figures and 9 kink scattering videos included as ancillary files
  • kink: scattering
  • false vacuum
  • field theory: scalar
  • vacuum state: multiple
  • domain wall
  • numerical calculations
  • sine-Gordon model