Quantum Langevin molecular dynamics determination of the solar-interior equation of state

TL;DR

This paper uses quantum Langevin molecular dynamics simulations to accurately determine the equation of state of the solar interior across a wide range of pressures and temperatures, including effects of heavy elements.

Contribution

It presents a novel ab initio simulation approach (QLMD) for the solar interior EOS over extensive pressure and temperature ranges, incorporating heavy element effects.

Findings

EOS accurately determined from 58 to 4.6×10^5 Mbar

Comparison with other models shows consistency

Heavy elements influence the EOS significantly

Abstract

The equation of state (EOS) of the solar interior is accurately and smoothly determined from \textit{ab initio} simulations named quantum Langevin molecular dynamics (QLMD) in the pressure range of $58 \leq P \leq 4.6\times10^5$ Mbar at the temperature range of $1 \leq T \leq 1500$ eV. The central pressure is calculated, and compared with other models. The effect of heavy elements such as carbon and oxygen on the EOS is also discussed.