Speaker
Prof.
Werner Heil
(Institute of Physics)
Description
Accurate frequency measurements currently give the strongest bounds on the validity of fundamental theories. We present new results from a 3He/129Xe clock-comparison experiment, where the free precession of the nuclear spins is used to probe Einsteins principle of relativity. In particular, the sidereal variation of the 3He/129Xe frequency induced by Lorentz-violating couplings is measured, from which new upper limits on leading order Lorentz-violation of the bound neutron could be derived. The extreme sensitivity of this "spin-clock" is based on the fact that the oscillator is decoupled from any environmental influences.
Primary author
Prof.
Werner Heil
(Institute of Physics)
Co-authors
Allard Schnabel
(PTB-Berlin)
Christian Ludwig
(Institute of Physics)
Claudia Gemmel
(Institute of Physics)
Frank Seifert
(PTB-Berlin)
Kai Lenz
(Institute of Physics)
Kathlynne Tullney
(Institute of Physics)
Lutz Trahms
(PTB-Berlin)
Martin Burghoff
(PTB-Berlin)
Sergej Karpuk
(Institute of Physics)
Silvia Knappe-Grüneberg
(PTB-Berlin)
Stefan Baeßler
(University of Virginia)
Ulrich Schmidt
(University of Heidelberg)
Walter Müller
(PTB-Berlin)
Wolfgang Kilian
(PTB-Berlin)
Yuri Sobolev
(Institute of Physics)
