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Keywords
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zero rest mass, soliton, stability, extended Klein-Gordon, solitary wave
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Abstract
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In this paper, extended Klein-Gordon field systems will be introduced. Theoretically, it will be shown
that for a special example of these systems, it is possible to have a single zero rest mass soliton
solution, which is forced to move at the speed of light provided it is considered a non-deformed rigid
object. This special soliton solution has the minimum energy among the other solutions, i.e. any
arbitrary deformation in its internal structure leads to an increase in the total energy.
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