Volume 131, Number 3, August 2020
|Number of page(s)||5|
|Section||The Physics of Elementary Particles and Fields|
|Published online||26 August 2020|
New twinlike models for scalar fields
1 Departamento de Física, Universidade Federal da Paraíba - 58051-970 João Pessoa, PB, Brazil
2 Departamento de Ciências Exatas, Universidade Federal da Paraíba - 58297-000 Rio Tinto, PB, Brazil
Received: 30 April 2020
Accepted: 4 August 2020
This work investigates twinlike scalar field models that support kinks with the same energy density and stability. We find the first-order equations compatible with the equations of motion. We use them to calculate the conditions under which they attain the twinlike character. The linear stability is also investigated, and there we show that the addition of extra requirements may lead to the same stability under small fluctuations.
PACS: 11.27.+d – Extended classical solutions; cosmic strings, domain walls, texture
© 2020 EPLA
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