The cosmological constant and Pioneer anomaly from Weyl spacetimes and Mach's principle

Details The cosmological constant and Pioneer anomaly from Weyl spacetimes and Mach's principle The cosmological constant and Pioneer anomaly from Weyl spacetimes and Mach's principle

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009phlb..675..226c&link_type=abstract

Physics Letters B, Volume 675, Issue 2, p. 226-230.

Physics

1

Scientific paper

It is shown how Weyl's geometry and Mach's holographic principle furnishes both the magnitude and sign (towards the sun) of the Pioneer anomalous acceleration a˜-c/R firstly observed by Anderson et al. Weyl's geometry can account for both the origins and the value of the observed vacuum energy density (dark energy). The source of dark energy is just the dilaton-like Jordan-Brans-Dicke scalar field that is required to implement Weyl invariance of the most simple of all possible actions. A nonvanishing value of the vacuum energy density of the order of 10MPlanck4 is found consistent with observations. Weyl's geometry accounts also for the phantom scalar field in modern Cosmology in a very natural fashion.

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