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arXiv · 1111.1318

New results on twinlike models

D. Bazeia·R. Menezes
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Abstract

In this work we study the presence of kinks in models described by a single real scalar field in bidimensional spacetime. We work within the first-order framework, and we show how to write first-order differential equations that solve the equations of motion. The first-order equations strongly simplify the study of linear stability, which is implemented on general grounds. They also lead to a direct investigation of twinlike theories, which is used to introduce a family of models that support the same defect structure, with the very same energy density and linear stability.

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D. Bazeia, R. Menezes. 2011-11-05. New results on twinlike models. https://doi.org/10.1103/physrevd.84.125018

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