A physical limitation of the Wigner “distribution” function in molecular transport
A physical limitation of the Wigner “distribution” function in molecular transport
复制标题
分子运输中维格纳“分布”功能的物理限制
DOI:
10.1016/j.physleta.2012.03.054
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发表时间:
2012
影响因子:
2.6
通讯作者:
H. Köppel
中科院分区:
文献类型:
--
作者:
I. Bâldea;H. Köppel
We present an example revealing that the sign of the "momentum"of the Wigner "distribution" functionis not necessarily associated with the direction of motion in the real world. This aspect, which is not related to the well known limitation of the Wigner function that traces back to the Heisenberg's uncertainty principle, is particularly relevant in transport studies, wherein it is helpful to distinguish between electrons flowing from electrodes into devices and vice versa.