TY - JOUR
T1 - Emission of waves by moving kinks in a spatially modulated sine-gordon system
AU - Malomed, Boris A.
AU - Tribelsky, Michael I.
PY - 1990
Y1 - 1990
N2 - Emission of radiation (quasilinear waves) by a periodic array of moving kinks is investigated within the framework of a driven damped sine-Gordon model with the additional perturbing term F(x)sin. At first, radiative energy losses of a solitary kink are studied in detail; new emission-induced steps on the one-kink velocity-drive characteristic (VDC) are predicted. Next, interference of waves emitted by kinks belonging to a rarefied periodic array is considered. Emission-induced steps on the array-s VDC are described in detail. Emission of radiation by a densely packed array (represented by a nearly linear solution of the SG equation) is also considered, and the corresponding steps are described for random and periodic inhomogeneities.
AB - Emission of radiation (quasilinear waves) by a periodic array of moving kinks is investigated within the framework of a driven damped sine-Gordon model with the additional perturbing term F(x)sin. At first, radiative energy losses of a solitary kink are studied in detail; new emission-induced steps on the one-kink velocity-drive characteristic (VDC) are predicted. Next, interference of waves emitted by kinks belonging to a rarefied periodic array is considered. Emission-induced steps on the array-s VDC are described in detail. Emission of radiation by a densely packed array (represented by a nearly linear solution of the SG equation) is also considered, and the corresponding steps are described for random and periodic inhomogeneities.
UR - http://www.scopus.com/inward/record.url?scp=11744388065&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.41.11271
DO - 10.1103/PhysRevB.41.11271
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AN - SCOPUS:11744388065
SN - 0163-1829
VL - 41
SP - 11271
EP - 11281
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
IS - 16
ER -