The average feature of the transport for a Brownian particle moving in a ratchet periodic potential is studied.
研究了在锯齿型周期势场中运动的布朗粒子的平均输运行为。
A stable and accurate integral closed algorithm is presented, which is used to solve multiplicative Langevin equation describing the directed motion of a particle in a periodic potential.
提出一种稳定和精确的坐标变换和闭合积分方法，用以求解描述周期势场中布朗粒子作定向运动的乘性朗之万方程。
A new principle for free electron lasers is proposed for the first time by using very strong surface periodic potential caused by the spontaneous polarization of ferroelectric single crystals.
本文利用铁电晶体自发极化产生的强大周期性表面势，首次提出新的自由电子激光原理。
A new principle for free electron lasers is proposed for the first time by using very strong surface periodic potential caused by the spontaneous polarization of ferroelectric single crystals.
本文利用铁电晶体自发极化产生的强大周期性表面势，首次提出新的自由电子激光原理。
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