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首页> 外文期刊>American journal of physics >SCATTERING FROM A NONSYMMETRIC POTENTIAL IN ONE DIMENSION AS A COUPLED-CHANNEL PROBLEM
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SCATTERING FROM A NONSYMMETRIC POTENTIAL IN ONE DIMENSION AS A COUPLED-CHANNEL PROBLEM

机译:从一个维度的非对称电位散射作为耦合通道问题

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摘要

We study the partial-wave description of scattering of a particle from a one-dimensional potential in quantum mechanics, There are two partial waves, with even and odd parity. They are decoupled if the potential V(x) is symmetric, i.e., V(x)=V(-x). If V(x)not equal V(-x), however, the two partial waves are coupled. This coupled-channel problem can be handled in terms of two eigenphases and a mixing parameter. This method enables us to shed new light on the transmission and reflection probabilities at threshold. (C) 1996 American Association of Physics Teachers. [References: 15]
机译:我们研究了从量子力学中的一维电位散射粒子的偏振描述,有两个部分波,均匀奇数和奇数。 如果电位V(X)对称,则它们被解耦,即,V(x)= v(-x)。 然而,如果V(x)不等于V(-x),则两个部分波被耦合。 该耦合信道问题可以根据两个特征和混合参数来处理。 该方法使我们能够以阈值缩小传输和反射概率的新光。 (c)1996年美国物理教师协会。 [参考:15]

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