瞬态动力学的含时Landauer-Büttiker公式
Time-dependent Landauer-Büttiker formula for transient dynamics
摘要：
我们解决解析的Kadanoff-Baym方程的一个非相互作用的结连接到一个任意数量的非相互作用的宽带终端。初始平衡态通过在时间轮廓上增加一个虚轨来适当地描述。从解中我们得到了结内随时间变化的电子密度和电流。最终结果是作为时间函数的解析表达式，因此不需要时间传播-无论是在瞬态还是稳态状态下。我们进一步提出并讨论了所得公式的一些应用。
英文摘要：
We solve analytically the Kadanoff-Baym equations for a noninteracting junction connected to an arbitrary number of noninteracting wide-band terminals. The initial equilibrium state is properly described by the addition of an imaginary track to the time contour. From the solution we obtain the time-dependent electron densities and currents within the junction. The final results are analytic expressions as a function of time, and therefore no time propagation is needed - either in transient or in steady-state regimes. We further present and discuss some applications of the obtained formulae.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
