Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coulomb forces in neutron star crusts   We study the role the proton-electron gas interaction has on the formation of
nuclear structures in neutron star crusts. Using a classical molecular dynamics
model we study isospin symmetric and asymmetric matter at subsaturation
densities and low temperatures varying the Coulomb interaction strength. The
effect of such variation is quantified on the fragment size multiplicity, the
inter-particle distance, the isospin content of the clusters, the nucleon
mobility and cluster persistence, and on the nuclear structure shapes. We find
that the proton-electron Coulomb interaction distributes matter more evenly,
disrupts the formation of larger objects, reduces the isospin content, modifies
the nucleon average displacement, but does not affect the inter-nucleon
distance in clusters . The nuclear structures are also found to change shapes
by different degrees depending on their isospin content, temperature and
density.

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The categories of this paper are: math
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: eess
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The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th