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- W1667993213 abstract "For kink–antikink scattering within the φ4 non-linear field theory in one space and one time dimension resonance type configurations emerge when the relative velocity between kink and antikink falls below a critical value. It has been conjectured that the vibrational excitation of the kink would be the source for these resonances because (simplified) collective coordinate calculations, that emphasized on this excitation, qualitatively reproduced those resonances. Surprisingly a numerical study in the ϕ6 field theory also exhibited such resonances even though it does not contain the vibrational excitation. To explore this contradiction we start from the working hypothesis that in either model any collective coordinate ansatz which includes a degree of freedom similar to the vibrational excitation leads to resonances, regardless of whether or not this mode emerges as a solution to the (linearized) field equations. To this end we compare numerical results in the φ4 and ϕ6 models that arise from the full set of partial differential equations to those from the ordinary differential equations for a collective coordinate ansatz. An inaccuracy in literature formulas for the collective coordinate approach in the φ4 model requires to revisit those calculations." @default.
- W1667993213 created "2016-06-24" @default.
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- W1667993213 date "2014-03-05" @default.
- W1667993213 modified "2023-10-16" @default.
- W1667993213 title "Kink–Antikink Scattering in φ<sup>4</sup> and ϕ<sup>6</sup> Models" @default.
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- W1667993213 doi "https://doi.org/10.1088/1742-6596/482/1/012045" @default.
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