Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diffusion coefficients in white dwarfs   Models of diffusion in white dwarfs universally rely on the coefficients
calculated by Paquette et al. (1986). We present new calculations of diffusion
coefficients based on an advanced microscopic theory of dense plasmas and a
numerical simulation approach that intrinsically accounts for multiple
collisions. Our method is validated against a state-of-the-art method and we
present results for the diffusion of carbon ions in a helium plasma.

23
The categories of this paper are: solv-int
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The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex