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Transfer-matrix approach to the problem of electrical conduction through a series of absorbers

机译:传递矩阵方法解决通过一系列吸收体的导电问题

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摘要

Here we study incoherent transport through molecular wire treated as a linear chain of absorbers, where the phase-breaking processes are modeled by the use of imaginary point-like potentials. The calculations are performed within a transfer matrix method of the scattering theory. An analytic expression for the transmission of a finite chain is obtained, while the electrical current is then computed with the help of the Tsu-Esaki formula. In particular, it is shown that the maximal current dependence on the wire length is exponential.
机译:在这里,我们研究通过分子线的不相干传输,该分子线被视为吸收剂的线性链,其中,通过使用虚构的点状电势来模拟断相过程。这些计算是在散射理论的传递矩阵方法中执行的。获得了有限链传输的解析表达式,然后借助Tsu-Esaki公式计算电流。特别地,示出了最大电流对导线长度的依赖性是指数的。

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