Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...466..660m&link_type=abstract
Astrophysical Journal v.466, p.660
Astronomy and Astrophysics
Astronomy
5
Cosmology: Theory, Magnetohydrodynamics: Mhd, Plasmas
Scientific paper
An interesting concept, vacuum zero-point fields (ZPF), has become, in some circles, an uncritically accepted idea. Attempts have been made to link it with a nonzero cosmological constant ({LAMBDA}), and a number of cosmology papers now treat {LAMBDA} as a free variable to be determined by observation. Recent work has claimed relevance of ZPF to cosmic voids. The ZPF view is that space is filled with an infinite energy density of undetectable photons, which, mysteriously, do not gravitate, but which are claimed to lead to all sorts of interesting physical effects. However, the ZPF seem largely to be a computational trick, in which case the vacuum can be considered as simply empty. Even if one adopted ZPF as having some sort of existence, any connection to A is fraught with difficulties (despite allegations to the contrary, the ZPF is not Lorentz invariant). If this were not enough, Einstein's choice of sign for {LAMBDA} is noted to be unphysical in the sense that it corresponds to an imaginary graviton mass.
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