Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent electronic transport through graphene constrictions:
  sub-wavelength regime and optical analogies   Graphene two-dimensional nature combined with today lithography allows to
achieve nanoelectronics devices smaller than the Dirac electrons wavelength.
Here we show that in these graphene subwavelength nanodevices the electronic
quantum transport properties present deep analogies with classical phenomena of
subwavelength optics. By introducing the concept of electronic diffraction
barrier to represent the effect of constrictions, we can easily describe the
rich transport physics in a wealth of nanodevices: from Bethe and Kirchhoff
diffraction in graphene slits, to Fabry-Perot interference oscillations in
nanoribbons. The same concept applies to graphene quantum dots and gives new
insigth into recent experiments on these systems.

24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas