Progress towards microwave spectroscopy of trapped antihydrogen

Mohammad D. Ashkezari, Gorm B. Andresen, Marcelo Baquero-Ruiz, Wil Bertsche, Paul D. Bowe, Eoin Butler, Claudio L. Cesar, Steve Chapman, Michael Charlton, Adam Deller, Stefan Eriksson, Joel Fajans, Tim Friesen, Makoto C. Fujiwara, Dave R. Gill, Andrea Gutierrez, Jeffrey S. Hangst, Walter N. Hardy, Ryugo S. Hayano, Michael E. HaydenAndrew J. Humphries, Richard Hydomako, Svante Jonsell, Lenoid Kurchaninov, Niels Madsen, Scott Menary, Paul Nolan, Konstantin Olchanski, Art Olin, Alex Povilus, Petteri Pusa, Francis Robicheaux, Eli Sarid, Daniel M. Silveira, Chukman So, James W. Storey, Robert I. Thompson, Dirk P. van der Werf, Jonathan S. Wurtele, Yasunori Yamazaki

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Precision comparisons of hyperfine intervals in atomic hydrogen and antihydrogen are expected to yield experimental tests of the CPT theorem. The CERN-based ALPHA collaboration has initiated a program of study focused on microwave spectroscopy of trapped ground-state antihydrogen atoms. This paper outlines some of the proposed experiments, and summarizes measurements that characterize microwave fields that have been injected into the ALPHA apparatus.

Original languageEnglish
Pages (from-to)81-90
Number of pages10
JournalHyperfine Interactions
Issue number1-3
StatePublished - 1 Dec 2012
Externally publishedYes


  • Antihydrogen
  • CPT
  • Hyperfine splitting
  • Neutral atom trap
  • Penning-Malmberg trap

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


Dive into the research topics of 'Progress towards microwave spectroscopy of trapped antihydrogen'. Together they form a unique fingerprint.

Cite this