Warm Dense Matter Graph (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Combinations of temperature and density that yield warm dense matter exist throughout the Universe, sometimes briefly, sometime long-term. Laser fusion experiments have briefly transited the warm dense matter regime at Livermore’s NIF and the University of Rochester’s Omega, as have special-purpose fusion experiments like Sandia’s Z-Pinch. Beam experiments like NDCX-II will create relatively long-lived warm dense matter for detailed study within the pressure-temperature region indicated by the red square on this diagram. Credit John Barnard Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.