标题： 由非平稳经典间歇噪声引起的去相位 显示英文标题

标题： Dephasing by a nonstationary classical intermittent noise

摘要： 我们考虑一个用于$1/f^{\mu}$经典间歇噪声的新现象学模型，并研究其对两能级系统去相位的影响。 在此模型中，$|\pm>$状态之间的相对相位演化被描述为连续时间随机游走（CTRW）。 利用更新理论，我们找到了去相位因子的精确表达式，并根据与噪声的耦合情况确定了各种物理相关的区域。 特别是，我们指出了这种噪声的非平稳性和显著的非高斯特性所带来的后果，包括一些新的异常和老化去相位情景。 显示英文摘要

摘要： We consider a new phenomenological model for a $1/f^{\mu}$ classical intermittent noise and study its effects on the dephasing of a two-level system. Within this model, the evolution of the relative phase between the $|\pm>$ states is described as a continuous time random walk (CTRW). Using renewal theory, we find exact expressions for the dephasing factor and identify the physically relevant various regimes in terms of the coupling to the noise. In particular, we point out the consequences of the non-stationarity and pronounced non-Gaussian features of this noise, including some new anomalous and aging dephasing scenarii.