Scattering from a nonsymmetric potential in one dimension as a coupled-channel problem
Scattering from a nonsymmetric potential in one dimension as a coupled-channel problem
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DOI：
10.1119/1.18123
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发表时间：
1996-07-01
影响因子：
0.9
通讯作者：
Ross, CK
中科院分区：
文献类型：
--
作者：
Nogami, Y;Ross, CK
本文研究了量子力学中粒子从一维势场中散射的分波描述。分波有奇宇称和偶宇称两种。如果电势V（x）是对称的，即，V（x）=V（-x）。然而，如果V（x）不等于V（-x），则两个分波耦合。这个耦合通道的问题可以处理的两个本征相位和一个混合参数。这种方法使我们能够揭示新的光在阈值的透射和反射概率。(C)1996年美国物理教师协会。
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.