  Path integral Monte Carlo simulations have been used to study deuterium at
high pressure and temperature. The equation of state has been derived in the
temperature and density region of 10000 < T < 1000000 K and 0.6 < rho < 2.5
gcm-3. A series of shock Hugoniot curves is computed for different initial
compressions in order to compare with current and future shock wave experiments
using liquid deuterium samples precompressed in diamond anvil cells.
