AI 中文总结
研究一维无自旋费米子系统在局域源、汇及体退相作用下的情况，借助林德布拉德框架计算相关函数时间演化，发现退相抑制量子特征、改变输运动力学，还研究了源汇系统，揭示量子相干产生的密度峰受退相影响被消除。
AI 中文摘要
我们研究了一个受局域源、汇和体退相作用的一般一维无自旋费米子系统。在林德布拉德框架内，我们计算了密度分布和空间关联函数的时间演化。我们发现体退相的存在抑制了某些相干量子特征，如弗里德尔振荡，并改变了输运动力学，呈现出两种不同的动力学区域，而非无退相时的三种。这种效应可理解为退相噪声导致的弹道运动破坏。在强退相下，密度分布变得类似于经典扩散区域的预期。我们还研究了存在局域源和汇且间距为\(\Delta\)的系统。有趣的是，量子相干在源 - 汇间距\(\Delta\)的整数倍处产生次级密度峰，随着体退相将系统推向经典扩散极限，这些峰被系统地消除。
英文摘要
We study a general one-dimensional spinless fermionic system subject to a localized source, sink, and bulk dephasing. Within the Lindblad framework, we compute the time evolution of the density profile and spatial correlation functions. We find that the presence of bulk dephasing suppresses certain coherent quantum features, such as the Friedel oscillations, and it alters the transport dynamics to exhibit two distinct dynamical regimes instead of three as observed in the absence of dephasing. This effect can be understood as the destruction of ballistic motion caused by the dephasing noise. Under strong dephasing, the density profile becomes similar to the one expected for a classical diffusive regime. We also investigate the system in the presence of both a localized source and sink, placed at a distance of $Δ$. Interestingly, quantum coherence generates secondary density peaks at integer multiples of the source-sink separation $Δ$, which are systematically washed out as bulk dephasing drives the system toward the classical diffusive limit.
