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cond-mat.stat-mech2000★ 48 cited
Resonances in the dynamics of kinks perturbed by ac forces
Niurka R. Quintero, Angel Sanchez, Franz G. Mertens
We study the dynamics of kinks perturbed by an ac force, both with and without damping. We address this issue by using a collective coordinate theory, which allows us to redu…
cond-mat.stat-mech2000★ 13 cited
Roughening and superroughening in the ordered and random two-dimensional sine-Gordon models
Angel Sanchez, A. R. Bishop, Esteban Moro
We present a comparative numerical study of the ordered and the random two-dimensional sine-Gordon models on a lattice. We analytically compute the main features of the expected hi…