# Relationship between the Casimir force and dark energy

This is related to another question I asked. Might we actually be observing dark energy when we do experiments that verify the Casimir effect?

Casimir (1948) shows that, between two particles (instead of the oft-cited case of two plates) $$\delta E \propto R^{-7}$$ That's an enormous drop-off. On large scales, this should be negligible. Dark energy, however, is clearly non-negligible on these scales, while its effects are unobservable on small scales.