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Your search keyword '"Radnaev, A. G."' showing total 2 results
Start Over Author "Radnaev, A. G." Topic magnetic dipoles
2 results on '"Radnaev, A. G."'

1. Single-Ion Nuclear Clock for Metrology at the 19th Decimal Place.

Author

Campbell, C. J., Radnaev, A. G., Kuzmich, A., Dzuba, V. A., Flambaum, V. V., and Derevianko, A.

Subjects
*METROLOGY, *NUCLEAR magnetism, *MAGNETIC dipoles, *THORIUM, *MANIFOLDS (Mathematics), *ENERGY levels (Quantum mechanics)
Abstract

The 7.6(5) eV nuclear magnetic-dipole transition in a single 229Th3+ ion may provide the foundation for an optical clock of superb accuracy. A virtual clock transition composed of stretched states within the 5F5/2 electronic ground level of both nuclear ground and isomeric manifolds is proposed. It is shown to offer unprecedented systematic shift suppression, allowing for clock performance with a total fractional inaccuracy approaching 1 × 10-19. [ABSTRACT FROM AUTHOR]

Published
2012
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2. Magnetic dipole and electric quadrupole moments of the 229Th nucleus.

Author

Safronova, M. S., Safronova, U. I., Radnaev, A. G., Campbel, C. J., and Kuzmich, A.

Subjects
*MAGNETIC dipoles, *DIPOLE moments, *QUADRUPOLE moments, *ELECTROMAGNETIC theory, *HYPERFINE structure, *THORIUM
Abstract

We determine the magnetic dipole μ = 0.360(7)μN and the electric quadrupole Q = 3.11(6)eb moments of the 229Th nucleus by combining our high-precision calculations of the hyperfine constants with measurements reported in Campbell et al. [Phys. Rev. Lett. 106, 223001 (2011)]. We find that the previous value μ = 0.46(4)μN [Gerstenkom et al., J. Phys. (Paris) 35, 483 (1974)] is incorrect by 25%. We report a method for determining the accuracy of theoretical hyperfine constants B/Q and demonstrate that it can be used to extract the electric quadrupole moment Q with a l%-2% uncertainty for a large number of nuclei. This approach allowed us to identify 40% inconsistencies in measurements of Ra+ hyperfine constants B. [ABSTRACT FROM AUTHOR]

Published
2013
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