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Professor Stefan Eriksson

Professor, Physics

Telephone number

+44 (0) 1792 602291

Research Links

Office - 521
Fifth Floor
Vivian Building
Singleton Campus
Available For Postgraduate Supervision


I am exploring fundamental physics by conducting experiments with matter and antimatter at temperatures approaching absolute zero. Currently, I focus on antihydrogen with my group in the ALPHA collaboration at CERN. Our aim is to precisely compare the properties of hydrogen and antihydrogen, which ought to be the same. If they were not, something would be amiss with the very foundations of physics. We hope that our studies could help shed light on one of the deepest mysteries of all; why there is almost no antimatter left in our universe today, when at the beginning there were equal amounts. The ALPHA collaboration was the first to show resonant excitation of antihydrogen and we are now able to conduct antihydrogen spectroscopy with a precision reaching few parts in a trillion. I am leading a major effort to improve the precision further.

I have also developed new techniques to study ultracold matter with components small enough to create chip-scale devices which became one of the platforms for quantum information processing and I am developing new ways to use nanoscale optics in these types of experiments.

Before taking up my post at Swansea University in 2007 I spent an extensive period at Imperial College London. I received my PhD from the University of Helsinki.


Areas Of Expertise

  • Atomic Physics
  • Antihydrogen
  • Quantum optics
  • Laser Cooling and Trapping
  • Bose-Einstein Condensation
  • Atom Interferometry
  • Laser Spectroscopy

Career Highlights

Award Highlights

Leverhulme Research Fellowship 2014-2016


The ALPHA collaboration at CERN