Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ab initio based empirical potential applied to tungsten at high pressure   Density-functional theory forces, stresses and energies comprise a database
from which the optimal parameters of a spline-based empirical potential
combining Stillinger-Weber and modified embedded-atom forms are determined.
Accuracy of the potential is demonstrated by predictions of ideal shear,
stacking fault, vacancy migration, elastic constants and phonons all between 0
and 100 GPa. Consistency with existing models and experiments is demonstrated
by application to screw dislocation core structure and deformation twinning in
a tungsten nanorod. Lastly, the potential is used to study the high-pressure
bcc to fcc phase transition.

18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph