Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Band Structure for Thermal Conduction in Multilayered Systems. Thermal
  Crystals   In this paper we solve the Cattaneo-Vernotte Equation for a periodic
heterostructure made of alternate layers of different materials. The solutions
describe thermal waves traveling in a periodic system, and it allows us to
introduce the concept of thermal crystals. We show that the dispersion relation
shows the characteristics of a band-structure, however the corresponding Bloch
wave vector is always complex corresponding to pseudo-bands, unlike what
happens in photonic or acoustic crystals. In this context, we also discuss the
use of the Floquet-Bloch theorem for thermal waves. The case of finite layered
structures is also analyzed showing the possibility of changing the temperature
and heat flux by introducing defects opening the possibility of thermal
management through the pseudo-band structure.

18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph