1989
DOI: 10.1103/physreva.39.4298
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Normal-mode diagonalization for two-component topological kinks

Abstract: We present a linear-stability analysis for the kink solutions of a two-component nonlinear scalar model in (1+1)dimensions. The study follows the traditional approaches which directly treat the normal-mode problem.The classical solutions of nonlinear-field theories exhib-

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Cited by 23 publications
(35 citation statements)
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“…Furthermore, the solutions are very similar to the pairs of classical configurations investigated in [8], and so it seems interesting to compare the present calculations with the ones there introduced. Here we recall that we already know that the above pairs of solutions are stable [2,4], while the pairs considered in [8] were shown to be unstable, at least in the region of parameters there considered.…”
Section: An Examplesupporting
confidence: 58%
See 2 more Smart Citations
“…Furthermore, the solutions are very similar to the pairs of classical configurations investigated in [8], and so it seems interesting to compare the present calculations with the ones there introduced. Here we recall that we already know that the above pairs of solutions are stable [2,4], while the pairs considered in [8] were shown to be unstable, at least in the region of parameters there considered.…”
Section: An Examplesupporting
confidence: 58%
“…In that investigation, it was also shown [8] that when the parameters of the system allows for a normal mode diagonalization that leads to analytical results, the pair of solutions given by the above Eq. (41) is classically unstable.…”
Section: A General Systemmentioning
confidence: 95%
See 1 more Smart Citation
“…In other words, the vacuum states act as implicit boundary conditions of the BPS equations. Now, instead of applying the usual trial-orbit approach [35][36][37][38][39][40][41], we note that it is possible to write the following equation:…”
Section: Two Interacting Scalar Fields Modelmentioning
confidence: 99%
“…A couple of years ago one of us presented a method for finding additional soliton solutions for those special cases whose soliton solutions are the BPS ones [35] and in the last year that approach was extended, allowing more general models [36,37,41]. This last approach is the one we will use along this manuscript.…”
Section: Introductionmentioning
confidence: 99%