K-field kinks in two-dimensional dilaton gravity
High Energy Physics - Theory
2021-10-20 v2 General Relativity and Quantum Cosmology
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.
Keywords
Cite
@article{arxiv.2108.10166,
title = {K-field kinks in two-dimensional dilaton gravity},
author = {Yuan Zhong and Fei-Yu Li and Xu-Dong Liu},
journal= {arXiv preprint arXiv:2108.10166},
year = {2021}
}
Comments
8 pages, 1 figure, accepted for publication by Phys. Letts. B