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4 papers · 2 filters
Effects of gravity in extra dimensions in atomic phenomena
V. A. Dzuba, V. V. Flambaum, P. Munro-Laylim
We use the difference between theory and experiment for energy intervals in simple atomic systems (hydrogen, muonium, positronium and deuteron) to find limits on the size of extra…
High-accuracy optical clocks based on group 16-like highly charged ions
Saleh O. Allehabi, S. M. Brewer, V. A. Dzuba +2
We identify laser-accessible transitions in group 16-like highly charged ions as candidates for high-accuracy optical clocks, including S-, Se-, and Te-like systems. For this class…
Atomic clocks highly sensitive to the variation of the fine structure constant based on Hf II, Hf IV, and W VI ions
Saleh O. Allehabi, V. A. Dzuba, V. V. Flambaum
We demonstrate that several metastable excited states in HfII, HfIV and WVI ions may be good clock states since they are sufficiently long-living and are not sensitive to…
Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson
Joonseok Hur, Diana P. L. Aude Craik, Ian Counts +12
Optical precision spectroscopy of isotope shifts can be used to test for new forces beyond the Standard Model, and to determine basic properties of atomic nuclei. We measure isotop…