Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: First principles Kinetic-Collective thermal conductivity of
  semiconductors   A fully predictive Kinetic Collective Model using first principles phonon
spectra and relaxation times is presented. Thermal conductivity values obtained
for Si, Ge, C (diamond) and GaAs in a wide range of sizes and temperatures have
good agreement with experimental data without the use of any fitting parameter.
This validation of the model open the door to discuss how the precise
combination of kinetic and collective contributions to heat transport could
provide a useful framework to interpret recent complex experiments displaying
non-Fourier behavior.

28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg