Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum confinement suppressing electronic heat flow below the
  Wiedemann-Franz law   The Wiedemann-Franz law states that the charge conductance and the electronic
contribution to the heat conductance are proportional. This sets stringent
constraints on efficiency bounds for thermoelectric applications, which seek
for large charge conduction in response to a small heat flow. We present
experiments based on a quantum dot formed inside a semiconducting InAs nanowire
transistor, in which the heat conduction can be tuned significantly below the
Wiedemann-Franz prediction. Comparison with scattering theory shows that this
is caused by quantum confinement and the resulting energy-selective transport
properties of the quantum dot. Our results open up perspectives for tailoring
independently the heat and electrical conduction properties in semiconductor
nanostructures.

31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc