Data di Pubblicazione:
2007
Citazione:
A symmetry breaking mechanism for selecting the speed of relativistic solitons / M. Cadoni, R. De Leo, G. Gaeta. - In: JOURNAL OF PHYSICS. A, MATHEMATICAL AND THEORETICAL. - ISSN 1751-8113. - 40:29(2007), pp. 022.8517-022.8534.
Abstract:
We propose a mechanism for fixing the velocity of relativistic solitons based
on the breaking of the Lorentz symmetry of the sine-Gordon (SG) model. The
proposal is first elaborated for a molecular chain model as the simple pendulum
limit of a double pendulums chain. It is then generalized to a full class of twodimensional
field theories of the sine-Gordon type. From a phenomenological
point of view, the mechanism allows one to select the speed of a SG soliton
just by tuning elastic couplings constants and kinematical parameters. From
a fundamental, field-theoretical point of view we show that the characterizing
features of relativistic SG solitons (existence of conserved topological charges
and stability) may be still preserved even if the Lorentz symmetry is broken
and a soliton of a given speed is selected.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M. Cadoni, R. De Leo, G. Gaeta
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