Feynman path description of the effects of dephasing of spatial coherences on the transmission and reflection probabilities through a one-dimensional potential
Feynman path description of the effects of dephasing of spatial coherences on the transmission and reflection probabilities through a one-dimensional potential
复制标题
通过一维势空间相干性对传输和反射概率的影响的费曼路径描述
DOI:
10.1088/1402-4896/acad39
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发表时间:
2023
期刊:
影响因子:
2.9
通讯作者:
Walls, Jamie D
中科院分区:
文献类型:
--
作者:
Nagalla, Karna;Walls, Jamie D
In this work, we examine the effects of spatial dephasing of coherences on the transmission and reflection probabilities for electrons with energy E incident to a one-dimensional rectangular barrier of height V 0. Statistical models are presented where the coherence between different scattering pathways or'Feynman paths' undergo dephasing over a length scale, L ϕ. For incident waves with E> V 0, three different dephasing models that attenuate the contributions of spatial coherence to the transmission and reflection probabilities while preserving unitarity (ie, conserving charge) were investigated. In the tunneling regime (incident waves with E< V 0), however, preserving unitarity requires L ϕ→∞, suggesting that elastic tunneling through a rectangular barrier is 100% spatially coherent for these dephasing models. However, wave absorption models are shown to preserve unitarity in the tunneling regime, which is not the case for scattering above the barrier.
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DOI:
10.1140/epjb/e2012-30348-y
发表时间:
2012-06
期刊:
The European Physical Journal B
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1103/physrevb.46.9493
发表时间:
1992-10
期刊:
Physical review. B, Condensed matter
影响因子:
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作者:
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影响因子:
8.6
作者:
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影响因子:
1.9
作者:
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