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arXiv · 2108.10166

K-field kinks in two-dimensional dilaton gravity

Yuan Zhong·Fei-Yu Li·Xu-Dong Liu
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Abstract

In this work, kinks with non-canonical kinetic energy terms are studied in a type of two-dimensional dilaton gravity model. The linear stability issue is generally discussed for arbitrary static solutions, and the stability criteria are obtained. As an explicit example, a model with cuscuton term is studied. After rewriting the equations of motion into simpler first-order formalism and choosing a polynomial superpotential, an exact self-gravitating kink solution is obtained. The impacts of the cuscuton term are discussed.

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Yuan Zhong, Fei-Yu Li, Xu-Dong Liu. 2021-10-13. K-field kinks in two-dimensional dilaton gravity. https://doi.org/10.1016/j.physletb.2021.136716

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