Mathematics – Logic
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aps..apr.h9006p&link_type=abstract
American Physical Society, April Meeting, 2003, April 5-8, 2003 Philadelphia, Pennsylvania, MEETING ID: APR03, abstract #H9.006
Mathematics
Logic
Scientific paper
Observations of type Ia supernovae, cosmic background radiation, and number counts will be able to determine if the acceleration of the universe is an effect of quantum field theory in the curved spacetime of general relativity. This effect, known as vacuum metamorphosis, is a rapid increase of the vacuum energy of a free quantized scalar field that may occur when the spacetime scalar curvature of the expanding universe falls to a magnitude determined by the square of the mass of the quantized field. This quantum field theory mechanism is dynamically distinct from any quintessence mechanism. The equation of state of the vacuum, after vacuum metamorphosis, is such that w = (vacuum pressure)/(vacuum energy density) is time-dependent and less than -1. The predictions of this model (which was the first with w less than -1) are given and compared with observation. In this model, the cosmological constant is set to 0.
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