PROGRESS TOWARDS TRAPPING AND COOLING ANTIHYDROGEN

 

Jonathan P. Wrubel, ATRAP collaboration

National Institute of Standards and Technology

Gaithersburg, MD 20899

 

Experiments at the European Organization for Nuclear Research (a.k.a. CERN) have been working towards producing, trapping, and precision laser spectroscopy of antihydrogen as a test of Charge-Parity-Time symmetry in quantum field theories for about two decades. In 2004, production of the first antihydrogen atoms at cryogenic temperatures was demonstrated; bringing their kinetic energies within reach of realizable neutral atom traps. Experiments are now underway with the capability to both produce cryogenic antihydrogen as well as to trap the neutral atoms so that laser cooling and spectroscopy are possible.  The current state of the art and recent results from the ATRAP collaboration will be presented.