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Dec 13 – 18, 2015
International Conference Centre Geneva
Europe/Zurich timezone

Testing varying speed of light cosmologies in future experiments.

Dec 17, 2015, 6:35 PM
Level 0, Room 3 (International Conference Centre Geneva)

Level 0, Room 3

International Conference Centre Geneva


Mariusz Dabrowski (University of Szczecin)


In this talk I will briefly present the advantages and drawbacks of varying speed of light c cosmologies and relate them to the of varying fine structure constant α theories. Then, I will discuss some new tests (redshift drift and angular diameter distance maximum against Hubble function) which may allow measuring timely and possibly even spatial change of the speed of light. The criteria to detect 1% variability of c by mock data for future missions such as Euclid and SKA (Square Kilometer Array) will be given. Literature: 1. A. Balcerzak, M.P. Dąbrowski, Redshift drift in varying speed of light cosmology, Physics Letters B728, 15-18 (2014). 2. V. Salzano, M.P. Dąbrowski, R. Lazkoz, Measuring the speed of light with Baryon Acoustic Oscillations, Physical Review Letters 114, 101304 (2015). 3. M.P. Dąbrowski, A. Balcerzak, V. Salzano – in progress.

Primary author

Mariusz Dabrowski (University of Szczecin)


Dr Adam Balcerzak (University of Szczecin) Dr Vincenzo Salzano (University of Szczecin)

Presentation materials