Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mode-Matching Technique for Transmission Calculations in Electron
  Waveguides at High Magnetic Fields   In this paper we present a mode-matching technique to study the transmission
coefficient of mesoscopic devices such as electron waveguides in the presence
of high magnetic fields for different situations. A detailed study of the
difficulties rising due to the presence of the magnetic field is given and the
differences with the zero magnetic field case are stressed. We apply this
technique to calculate the transmission at non-zero magnetic field of two
completely different systems: a) a quantum box built up on a quantum wire (or
electron waveguide) by means of two barriers and b) a meandering quantum wire,
{\em i.e.}, a wire with changes in the guiding direction. In the former case we
analyze the so-called {\em Coulomb Blockade} and {\em Aharanov-Bohm} regimes
and in the latter one we focus on the realistic case of soft, circular bends
joining the different sections of the wire.

17
The categories of this paper are: q-fin
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The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys