Scientists at the Lawrence Livermore National Laboratory have discovered a new melt curve of hydrogen, resulting in the possible existence of a novel superfluid - a brand new state of matter
This figure illustrates the transition from a molecular solid (top) to a quantum liquid (bottom) that is expected to occur in hydrogen under high pressure.
As reported in the Oct. 7 edition of the journal Nature, the researchers present the results of ab initio calculations of the hydrogen melt curve at pressures up to 2 million atmospheres.
The measurement of the high-pressure phases of hydrogen has been the focus of numerous experiments for nearly a century. However, the phase boundary that separates the solid and the liquid has remained relatively unknown.
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