Zobrazeno 1 - 10
of 626
pro vyhledávání: '"Hennig D"'
Autor:
Charalampidis, E. G., James, G., Cuevas-Maraver, J., Hennig, D., Karachalios, N. I., Kevrekidis, P. G.
In the present work we explore the potential of models of the discrete nonlinear Schr\"odinger (DNLS) type to support spatially localized and temporally quasiperiodic solutions on top of a finite background. Such solutions are rigorously shown to exi
Externí odkaz:
http://arxiv.org/abs/2306.08072
Autor:
Charalampidis, E.G., James, G., Cuevas-Maraver, J., Hennig, D., Karachalios, N.I., Kevrekidis, P.G.
Publikováno v:
In Wave Motion July 2024 128
Publikováno v:
In Annals of Nuclear Energy February 2022 166
Publikováno v:
Phys. Rep. 586, 1 (2015)
The physics of activated escape of objects out of a metastable state plays a key role in diverse scientific areas involving chemical kinetics, diffusion and dislocation motion in solids, nucleation, electrical transport, motion of flux lines supercon
Externí odkaz:
http://arxiv.org/abs/1504.02497
We study the escape of a chain of coupled units over the barrier of a metastable potential. It is demonstrated that a very weak external driving field with suitably chosen frequency suffices to accomplish speedy escape. The latter requires the passag
Externí odkaz:
http://arxiv.org/abs/1311.5021
Publikováno v:
CHAOS 21, 023132 (2011)
We consider the damped and driven dynamics of two interacting particles evolving in a symmetric and spatially periodic potential. The latter is exerted to a time-periodic modulation of its inclination. Our interest is twofold: Firstly we deal with th
Externí odkaz:
http://arxiv.org/abs/1108.4316
We propose a mechanism to rectify charge transport in the semiclassical Holstein model. It is shown that localised initial conditions, associated with a polaron solution, in conjunction with a nonreversion symmetric static electron on-site potential
Externí odkaz:
http://arxiv.org/abs/1009.4941
Publikováno v:
Phys. Rev. E {\bf 82}, 026210 (2010)
We propose a minimal model for the emergence of a directed flow in autonomous Hamiltonian systems. It is shown that internal breaking of the spatio-temporal symmetries, via localised initial conditions, that are unbiased with respect to the transport
Externí odkaz:
http://arxiv.org/abs/1003.4639
Publikováno v:
Physica D {\bf 238}, 2273 (2009)
We study the conservative and deterministic dynamics of two nonlinearly interacting particles evolving in a one-dimensional spatially periodic washboard potential. A weak tilt of the washboard potential is applied biasing one direction for particle t
Externí odkaz:
http://arxiv.org/abs/0907.5134
Publikováno v:
Phys. Rev. E {\bf 79}, 041117 (2009)
We consider motion of an underdamped Brownian particle in a washboard potential that is subjected to an unbiased time-periodic external field. While in the limiting deterministic system in dependence of the strength and phase of the external field di
Externí odkaz:
http://arxiv.org/abs/0901.4189