Dear cosmology people, What is a theoretical value for the zero-point energy density of the vacuum? It must be hard to know or even controversial. Even though the zero point field is a QFT topic, the question seems to be cosmological, because only the cosmologist seem to be forthcoming on the matter. Furthermore, a lot of sources seem to talk up a good understanding, but then they either don't ever get around to giving up a value or they do and don't even get the dimensional units right. Pascals could be correct for energy density.