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The derivation of the state of the art tensorial versions of FundamentalMeasure Theory (a form of classical Density Functional Theory for hard spheres)are re-examined in the light of the recently introduced concept of globalstability of the density functional based on its boundedness (Lutsko and Lam,Phys. Rev. E 98, 012604 (2018)). It is shown that within the present paradigm,explicitly stability of the functional can be achieved only at the cost ofgiving up accuracy at low densities. It is argued that this is an acceptabletrade-off since the main value of DFT lies in the study of dense systems.Explicit calculations for a wide variety of systems shows that a proposedexplicitly stable functional is competitive in all ways with the popular WhiteBear model while sharing some of its weaknesses when applied tonon-close-packed solids.

Explicitly stable Fundamental Measure Theory models for classical density functional theory