68 citations · 288 across the 6 of their papers we have counts for
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Sympathetic cooling of a trapped proton mediated by an LC circuit
M. Bohman, V. Grunhofer, C. Smorra +18
Efficient cooling of trapped charged particles is essential to many fundamental physics experiments, to high-precision metrology, and to quantum technology. Until now, sympathetic…
Direct limits on the interaction of antiprotons with axion-like dark matter
C. Smorra, Y. V. Stadnik, P. E. Blessing +18
Astrophysical observations indicate that there is roughly five times more dark matter in the Universe than ordinary baryonic matter, with an even larger amount of the Universe's en…
Determination of quantum defect for the Rydberg P series of Ca II
Arezoo Mokhberi, Jonas Vogel, Justas Andrijauskas +3
We present an experimental investigation of the Rydberg 23 P state of laser-cooled Ca ions in a radiofrequency ion trap. Using micromotion sideband spectroscopy…
Measurement of ultra-low heating rates of a single antiproton in a cryogenic Penning trap
M. J. Borchert, P. E. Blessing, J. A. Devlin +15
We report on the first detailed study of motional heating in a cryogenic Penning trap using a single antiproton. Employing the continuous Stern-Gerlach effect we observe cyclotron…
Observation of individual spin quantum transitions of a single antiproton
C. Smorra, A. Mooser, M. Besirli +15
We report on the detection of individual spin quantum transitions of a single trapped antiproton in a Penning trap. The spin-state determination, which is based on the unambiguous…
Physics at CERN's Antiproton Decelerator
M. Hori, J. Walz
The Antiproton Decelerator of CERN began operation in 1999 to serve experiments for studies of CPT invariance by precision laser and microwave spectroscopy of antihydrogen ($\bar{\…