Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Characterization of the State of Hydrogen   Fermionic path integral Monte Carlo simulations have been applied to study
the equilibrium properties of the hydrogen and deuterium in the density and
temperature range of 1.6 < rs < 14.0 and 5000K < T < 167000K. We use this
technique to determine the phase diagram by identifying the plasma, the
molecular, atomic and metallic regime. We explain how one can identify the
phases in the path integral formalism and discuss the state of hydrogen for 5
points in the temperature-density plane. Further we will provide arguments for
the nature of the transitions between the regimes.

31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol