Screening of A Test Charge in the High Density Strongly Coupled Quantum Plasma

This paper reports an attractive force between ions that are shielded by degenerate electrons in high density strongly coupled quantum plasma. The electric potential around an isolated ion has hard core negative part that looks like the Lennard-Jones (LJ) type potential. The new attractive potential is attributed to the quantum Bohm potential within hydrodynamic approach. Here the electron exchange and electron correlations are not considered. The negative potential is responsible for the attraction of ions forming lattices and atoms/molecules also for critical point and phase transition in high density SCQ plasma at nano scales.