随机泵浦电流与非绝热几何相位
The stochastic pump current and the non-adiabatic geometrical phase
摘要：
利用非绝热几何相解释计算了经典两态随机化学动力学中的抽运电流。两态系统被连接到两个粒子库，并且在动力学速率的周期性扰动下，它在两态系统和吸收态之间产生泵浦电流。为了计算泵浦电流，将非绝热几何相位的Floquet理论从厄米特情形推广到非厄米特情形。明确地推导出泵浦电流对微扰动力学速率的频率的依赖关系，并获得了类似随机共振的行为。
英文摘要：
We calculate a pump current in a classical two-state stochastic chemical kinetics by means of the non-adiabatic geometrical phase interpretation. The two-state system is attached to two particle reservoirs, and under a periodic perturbation of the kinetic rates, it gives rise to a pump current between the two-state system and the absorbing states. In order to calculate the pump current, the Floquet theory for the non-adiabatic geometrical phase is extended from a Hermitian case to a non-Hermitian case. The dependence of the pump current on the frequency of the perturbative kinetic rates is explicitly derived, and a stochastic resonance-like behavior is obtained.
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