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Thermally activated escape far from equilibrium: A unified path-integral approach

机译:远离均衡的热激活逃逸:统一的路径积分方法

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Thermally activated escape over potential barriers is addressed for systems driven out of equilibrium by time-dependent forces, temperatures, or dissipation coefficients of rather general type. Particular examples are periodic perturbations, single pulses, and the initial convergence towards Kramers rate in a time-independent set up. The general problem is treated within one common, unifying path-integral approach in the simplest case of an overdamped, one-dimensional model dynamics [1]. As an application, the following quite astonishing effect is demonstrated: For a suitably chosen, but still quite simple static potential landscape, the net escape rate may be substantially reduced by temporally increasing the temperature above its unperturbed, constant level [2].
机译:通过时间依赖的力,温度或耗散系数驱动的系统,通过相当一般类型的耗散系数从平衡驱动的系统来解决过潜在屏障的热激活逃逸。特定的例子是定期扰动,单脉冲和初始收敛到kramers速率的kramers率在一个与时的设置中。在覆盖的一维模型动态的最简单情况下,在一个常见的统一路径积分方法中处理一般问题[1]。 As an application, the following quite astonishing effect is demonstrated: For a suitably chosen, but still quite simple static potential landscape, the net escape rate may be substantially reduced by temporally increasing the temperature above its unperturbed, constant level [2].

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