Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wigner transport equation with finite coherence length   The use of the Wigner function for the study of quantum transport in open
systems present severe criticisms. Some of the problems arise from the
assumption of infinite coherence length of the electron dynamics outside the
system of interest. In the present work the theory of the Wigner function is
revised assuming a finite coherence length. A new dynamical equation is found,
corresponding to move the Wigner momentum off the real axis, and a numerical
analysis is performed for the case of study of the onedimensional potential
barrier.

18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs