Getting a handle on exotic Warm Dense Matter


Warm Dense Matter is an unusual state of matter that is neither a solid, a liquid, a gas nor a plasma and is thought to exist in compact stars or to emergy under the action of intense lasers. Standard theories such as quantum Monte Carlo (QMC) simulations have failed to grasp this kind of matter due to the fermion sign problem. Now a new ab initio simulation approach - Configuration Path integral Monte Carlo (CPIMC)- developed by the group of Prof. Michael Bonitz provides the first ab initio data for the uniform electron gas at finite temperature. The results are published in Physical Review Letters and will be the basis for accurate free energy functionals of finite temperature density functional theory.

Further Reading: press release of CAU Kiel