Spatiotemporal spin dynamics under spin-orbit interaction is investigated in a (001) GaAs two-dimensional electron gas using magneto-optical Kerr rotation microscopy. Spin-polarized electrons are diffused away from the excited position, resulting precession because of diffusion-induced field. Near cancellation between field and external magnetic field, induced frequency depends nonlinearly on d...

Design and perform controlled numerical experiments with a realistic hurricane model (Wang 1998) and a coupled hurricane-ocean model to identify major processes determining baroclinic TC motion in the presence of convective heating and/or air-sea interaction. We develop, test, and apply a new diagnostic framework, the potential vorticity tendency (PVT) analysis, for quantifying contributions of...

We propose a general strategy for designing coupling functions in order to achieve a desired amplitude dynamics in coupled nonlinear oscillators. The target dynamics achieved by the proposed control schemes is a fixed-point motion at a desired amplitude level or a periodic motion at a desired frequency. The control schemes are illustrated with Rössler and Hindmarsh-Rose oscillators.

The paper deals with coupled electromagnetic, hydrodynamic, thermal and mechanical motion phenomena in magnetorheological fluid transducers. The common structures of those devices are presented and discussed. The governing equations of coupled phenomena are presented. The numerical implementation of the mathematical model is based on the finite element method and a step-by-step algorithm. Selec...

We consider classical Yang-Mills theory with point sources and derive equations of motion for the coupled particle-field system. As an example, we discuss the special case of Yang-Mills theory coupled to point particles in (1þ 1) dimensions. We formulate the initial value problem for the system and describe several example solutions. VC 2011 American Association of Physics Teachers. [DOI: 10.11...

We investigate two coupled oscillators, each of which shows an attracting heteroclinic cycle in the absence of coupling. The two heteroclinic cycles are nonidentical. Weak coupling can lead to the elimination of the slowing-down state that asymptotically approaches the heteroclinic cycle for a single cycle, giving rise to either quasiperiodic motion with separate frequencies from the two cycles...