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arXiv · 1504.03023

Lifetime measurement of the 5d$^2$D$_{5/2}$ state in Ba$^+$

Amita Mohanty·Elwin A. Dijck·Mayerlin Nuñez Portela·Nivedya Valappol·Andrew T. Grier·Thomas Meijknecht·Lorenz Willmann·Klaus Jungmann
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Abstract

The lifetime of the metastable 5d$^2$D$_{5/2}$ state has been measured for a single trapped Ba$^+$ ion in a Paul trap in Ultra High Vacuum (UHV) in the 10$^{-10}$ mbar pressure range. A total of 5046 individual periods when the ion was shelved in this state have been recorded. A preliminary value $τ_{D_{5/2}} = 26.4(1.7)$~s is obtained through extrapolation to zero residual gas pressure.

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Amita Mohanty, Elwin A. Dijck, Mayerlin Nuñez Portela, Nivedya Valappol, Andrew T. Grier, Thomas Meijknecht, Lorenz Willmann, Klaus Jungmann. 2015-04-12. Lifetime measurement of the 5d$^2$D$_{5/2}$ state in Ba$^+$. https://doi.org/10.1007/s10751-015-1161-9

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