Conveners
Fundamental Tests and Equivalence Principle
- David Wands (chair) (University of Portsmouth)
Fundamental Tests and Equivalence Principle
- Renate Loll (chair) (Radboud University, Nijmegen)
Description
Fundamental Tests and Equivalence Principle
Atomic Clock Ensemble in Space (ACES) is developing high performance clocks and links to test Einstein’s theory of general relativity. From the International Space Station, the ACES payload will distribute a clock signal with fractional frequency instability and inaccuracy of 1E-16 establishing a global network to compare clocks in space and on the ground. ACES will provide an accurate...
Invited talk
The ability to control the quantum degrees of freedom of atoms using laser light opened the way to precision measurements of fundamental physical quantities. I will describe experiments for precision tests of gravitational physics using new quantum devices based on ultracold atoms, namely, atom interferometers and optical clocks. I will report on the measurement of the gravitational constant G...
The MICROSCOPE satellite was launched in April 2016 and ended its operations in October 2018. Aiming at testing the Equivalence Principle (EP) with an accuracy better than ever tested, the satellite has provided usefull scientific data during more than two years. The EP is the funding hypothesis of the General Relativity (GR) established by Einstein in 1917. It states the equivalence between...
Antimatter as a system to test fundamental laws has the advantage of addressing both the CPT invariance of Particle Physics and the Weak Equivalence Principle of General Relativity. I will discuss gravitational tests currently planned for systems with antimatter, like antihydrogen, positronium and monism.
