Lifetime measurement of the 5d 2D5/2 state in Ba+

Amita Mohanty, Elwin A. Dijck, Mayerlin Nunez Portela, Nivedya Valappol, Andrew T. Grier, Thomas Meijknecht, Lorenz Willmann, Klaus-Peter Jungmann

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Abstract

The lifetime of the metastable 5d ^2D 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 T D 5/2 = 26.4(1.7)s is obtained through extrapolation to zero residual gas pressure.
Original languageEnglish
Pages (from-to)113-119
Number of pages7
JournalHyperfine Interactions
Volume233
Issue number1
DOIs
Publication statusPublished - 21-Apr-2015

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