K-field kinks in two-dimensional dilaton gravity

Zhong, Yuan; Li, Fei-Yu; Liu, Xu-Dong

doi:10.1016/j.physletb.2021.136716

K-field kinks in two-dimensional dilaton gravity

Aug 23, 2021

8 pages

Published in:

Phys.Lett.B 822 (2021) 136716

Published: Nov 10, 2021

e-Print:

2108.10166 [hep-th]

DOI:

10.1016/j.physletb.2021.136716 (publication)

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Abstract: (Elsevier B.V.)

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.

Note:

8 pages, 1 figure, accepted for publication by Phys. Letts. B

2D dilaton gravity
Kinks
K-field
dimension: 2
gravitation: dilaton
gravitation: model
energy: kinetic
stability: linear
kink: solution
quantum mechanics: supersymmetry

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