Varying Constants and Fundamental Cosmology – VARCOSMOFUN’16

Session

Plenary session I

P1

12 Sept 2016, 09:10

Room 7 (Maritime University of Szczecin Campus, Szczerbcowa 4)

Conveners

Plenary session I

• Marek Biesiada (University of Silesia)

Plenary session I

• Marek Biesiada (University of Silesia)

110. Fundamental constants, gravitation and cosmology – recent developments

Prof. Jean-Philippe Uzan (Institut d’Astrophysique de Paris (IAP), France)

12/09/2016, 09:10

plenary

Fundamental constants play a central role in the laws of physics. Any detection of the variation of these constant would signal a violation of the Einstein equivalence principle, and thus the need to go beyond general relativity. After recalling the links between fundamental constants and theories of gravity, I will focus on recent developments to constrain their time variation, mostly...

106. Varying constants, cosmology and the puzzle of quantum gravity

Prof. João Magueijo (Imperial College, London, United Kingdom)

12/09/2016, 10:05

plenary

Varying constants theories in several guises may be essential for the resolution of a number of impasses in cosmology and quantum gravity. Perhaps the most radical of them all – varying c theories – may be the clue to extracting phenomenology from quantum gravity theories, finally rendering the field properly a branch of science. I will review this possibility, with particular emphasis on the...

71. Search for New Physics with Atomic Clocks

Dr Ekkehard Peik (PTB)

12/09/2016, 11:30

plenary

The precision of atomic clocks improves at a rapid pace: While caesium clocks now reach relative uncertainties of a few $10^{-16}$, several optical clocks based on different atoms and ions are now reported with systematic uncertainties in the low $10^{-18}$ range [1]. The Yb$^+$ optical clock at PTB has recently reached this uncertainty [2], following Hans Dehmelt’s seminal ideas of using ...