Abstract
In a recent Letter [P. K. Shukla and B. Eliasson, Phys. Rev. Lett. 108, 165007 (2012)] the discovery of a new attractive force between protons in a hydrogen plasma was reported that would be responsible for the formation of molecules and of a proton lattice. Here we show, based on ab initio density functional calculations and general considerations, that these predictions are not correct and caused by using linearized quantum hydrodynamics beyond the limits of its applicability.
- Received 23 May 2012
DOI:https://doi.org/10.1103/PhysRevE.87.033105
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