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Anomalous diffusion and ballistic peaks: A quantum perspective

机译:异常扩散和弹道峰:量子观点

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摘要

The quantum kicked rotor and the classical kicked rotor are both shown to have truncated Levy distributions in momentum space, when the classical phase space has accelerator modes embedded in a chaotic sea. The survival probability for classical particles at the interface of an accelerator mode and the chaotic sea has an inverse power-law structure, whereas that for quantum particles has a periodically modulated inverse power law, with the period of oscillation being dependent on Planck's constant. These logarithmic oscillations are a renormalization group property that disappears as (h) over bar-->o in agreement with the correspondence principle. [References: 29]
机译:当经典相空间具有嵌入​​混沌海中的加速器模式时,量子踢旋翼和经典踢旋翼都显示出在动量空间中具有截短的Levy分布。经典粒子在加速器模式与混沌海的界面处的生存概率具有逆幂律结构,而量子粒子的生存概率具有周期性调制的逆幂律,振荡周期取决于普朗克常数。这些对数振荡是重新归一化的组属性,与对应原理一致,在(bar)> o上消失为(h)。 [参考:29]

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