论文标题
与单光子波袋相互作用的Qubit的永恒非马克维亚动力学
Eternally non-Markovian dynamics of a qubit interacting with a single-photon wavepacket
论文作者
论文摘要
分析了与单光子波数据包相互作用的两级系统（Qubit）的演变。结果表明，主方程的层次结构产生了相协变量的量子量的演变。输入场中的时间相关性诱导量子的演变诱导非平凡记忆效应。结果表明，在谐振情况下，每当定时生成器是常规的（不显示奇异性）时，量子进化永远不会显示信息回流。但是，总体而言，发电机可能是高度奇异的，导致复杂的非马克维亚效应。提供了指数曲线的详细分析，该分析允许说明量子进化的所有特征。
An evolution of a two-level system (qubit) interacting with a single-photon wave packet is analyzed. It is shown that a hierarchy of master equations gives rise to phase covariant qubit evolution. The temporal correlations in the input field induce nontrivial memory effects for the evolution of a qubit. It is shown that in the resonant case whenever time-local generator is regular (does not display singularities) the qubit evolution never displays information backflow. However, in general the generator might be highly singular leading to intricate non-Markovian effects. A detailed analysis of the exponential profile is provided which allows to illustrate all characteristic feature of the qubit evolution.
