Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fourier law in the alternate mass hard-core potential chain   We study energy transport in a one-dimensional model of elastically colliding
particles with alternate masses $m$ and $M$. In order to prevent total momentum
conservation we confine particles with mass $M$ inside a cell of finite size.
We provide convincing numerical evidence for the validity of Fourier law of
heat conduction in spite of the lack of exponential dynamical instability.
Comparison with previous results on similar models shows the relevance of the
role played by total momentum conservation.

36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: atom-ph