https://doi.org/10.1140/epjc/s10052-020-08724-y
Regular Article - Theoretical Physics
Extended multi-scalar field theories in
dimensions
Instituto de Física e Química, Universidade Federal de Itajubá, Av. BPS 1303, CEP 37500-903, Itajubá, MG, Brazil
a
alexis.roaaguirre@unifei.edu.br
Received:
23
October
2020
Accepted:
30
November
2020
Published online:
11
December
2020
We present the explicit construction of some multi-scalar field theories in ) dimensions supporting BPS (Bogomol’nyi–Prasad–Sommerfield) kink solutions. The construction is based on the ideas of the so-called extension method. In particular, several new interesting two-scalar and three-scalar field theories are explicitly constructed from non-trivial couplings between well-known one-scalar field theories. The BPS solutions of the original one-field systems will be also BPS solutions of the multi-scalar system by construction, and therefore we will analyse their linear stability properties for the constructed models.
© The Author(s) 2020
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