Fundamental Symmetry Tests with Trapped Antihydrogen
- Observation of the 1S-2P Lyman-alpha transition in antihydrogen (Nature, 2018)
- ALPHA-g antimatter gravity detector gets ready for the beam (IEEE Spectrum, 2018)
- Characterization of the 1S-2S transition in antihydrogen (Nature, 2018)
- Antihydrogen accumulation for fundamental symmetry tests (Nature Communications, 2017)
- Observation of the hyperfine spectrum of antihydrogen (Nature, 2017)
- First laser spectroscopy on antihydrogen atoms (Nature, 2016)
- Improved charge limit on antihydrogen (Nature, 2016)
- An experimental limit on the charge of antihydrogen (Nature Communications, 2014)
- Towards a measurement of antimatter gravity (Nature Communications, 2013)
- Proposal for laser cooling of antimatter atoms (January, 2013)
- Fujiwara shares the John Dawson Award (April, 2012)
- First spectroscopy on antimatter atoms (Nature, 2012)
- Antihydrogen trapped for 1000 seconds (Nature Physics, 2011)
- ALPHA-Canada hosts International Conference on Antiprotons: LEAP 2011 (April, 2011)
- Antihydrogen: top science story for 2010 (PhysicsWorld, Dec, 2010)
- Antimatter atoms capatured (Nature, 2010)
The ScienceALPHA is an international collaboration based at CERN, which studies of antihydrogen atoms, the antimatter counterpart of the simplest atom, hydrogen. By comparisons of hydrogen and antihydrogen, the experiment hopes to understand fundamental symmetries between matter and antimatter.
The Canadian group (ALPHA-Canada) is a significant group in ALPHA, constituting more than 1/3 of the international collaboration. ALPHA-Canada consists of a dozen researchers and students from 5 Canadian institutions (UBC, Calgary, SFU, York, and TRIUMF). ALPHA-Canada plays a leading role in both the particle physics and the atomic spectroscopy aspects of the experiment.
Trapping and spectroscopy of antihydrogen is a challenging task, and requires a wide variety of techniques ranging from ion and atom trapping, to manipulations of cold plasmas, to precision laser and microwave spectroscopy, to sophisticated particle physics detection and analysis. Hence it is an excellent training ground for students. Graduate students typically spend up to several months a year in Geneva to participate in the experiment. If you are interested in working with us, please contact any of ALPHA-Canada faculty members.
ALPHA-Canada contact:Dr. Makoto C. Fujiwara, TRIUMFMakoto.Fujiwara@triumf.caPh: +1-604-222-7585 (Vancouver)Ph: +41-75-411-3828 (Geneva)