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Autor: Hennig, D., Mulhern, C., Schimansky-Geier, L., Tsironis, G. P., Hänggi, P.

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

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Nonlinear response of a linear chain to weak driving

Autor: Hennig, D., Mulhern, C., Burbanks, A. D., Schimansky-Geier, L.

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

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From collective periodic running states to completely chaotic synchronised states in coupled particle dynamics

Autor: Hennig, D., Burbanks, A. D., Osbaldestin, A. H., Mulhern, C.

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

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Emergence of continual directed flow in Hamiltonian systems

Autor: Hennig, D., Burbanks, A. D., Mulhern, C., Osbaldestin, A. H.

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

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