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arXiv · 1201.3132

Moving Stable Solitons in Galileon Theory

Ali Masoumi·Xiao Xiao
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Abstract

Despite the no-go theorem [5] which rules out static stable solitons in Galileon theory, we propose a family of solitons that evade the theorem by traveling at the speed of light. These domain-wall-like solitons are stable under small fluctuations-analysis of perturbation shows neither ghost-like nor tachyon-like instabilities, and perturbative collision of these solitons suggests that they pass through each other asymptotically, which maybe an indication of the integrability of the theory itself.

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Ali Masoumi, Xiao Xiao. 2012-07-17. Moving Stable Solitons in Galileon Theory. https://doi.org/10.1016/j.physletb.2012.07.019

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