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A novel mechanism for the appearance of oriented processes is investigatedwith a flexible dynamical system overcoming barriers. Under non-equilibriumcondition with external driving, reaction paths deviate from that atequilibrium with an accompanying violation of symmetry between the forward andthe reverse paths. Although we never introduce any external switching ofpotentials to generate the oriented processes, multi-dimensional flexibledynamics promote the oriented processes through this symmetry violation. Alongthe reaction paths, bottleneck points are proposed as a rate-controllingfactor, which determine the {\it direction-dependent activation energies}satisfying Arrhenius-like law for the rate constants. In comparison, in stiffsystems, the oriented process is suggested to appear in different manner fromthis scenario.Comment: 6 pages, 6 figure

Oriented Process Induced by Dynamically Regulated Energy Barriers