Bremen 2017 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 14: Postersitzung

GR 14.6: Poster

Thursday, March 16, 2017, 14:00–16:00, SFG 0150

The Question of Dark Energy — •Albrecht Giese — Taxusweg 15, 22605 Hamburg

Dark energy is considered to be one of the great mysteries of present-day physics. From measurements of the motion of type Ia supernovae, it has been concluded that the universe is undergoing accelerated expansion. To explain this acceleration, the universe is assumed to be filled with some type of ("dark") energy.

However, there is a very unspectacular explanation for this measurement. There are indications that the speed of light 'c' was higher in the past. If this higher value is inserted into the Doppler equation to determine the speed from red-shifts, higher speeds are found for early stars. So there is no acceleration.

Mainstream physics objects to this, however, arguing that according to Einstein's theory of relativity, c has always been the known constant. However, this is not clearly stated by Einstein.

A variation of c will also explain the so called phenomenon of cosmological inflation in a very straight way. The underlying horizon problem, i.e. the apparent logical connection of parts of our universe far apart from each other can be the consequence of a very high 'c' at early times. There is no need for any other explanation.