The equation of state ( EOS ) of the solar interior is accurately and smoothly determined from ab initio simulations named quantum Langevin molecular dynamics ( QLMD ) in the pressure range of 58 \leq P \leq 4.6 \times 10 ^ { 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 .