Lifetime measurement of the metastable 3d 2D5/2 state in the 40Ca+ ion using the shelving technique on a few-ion string

Abstract

We present a measurement of the lifetime of the metastable 3d 2D5/2 state in the 40Ca+ ion, using the so-called shelving technique on a string of five Doppler laser-cooled ions in a linear Paul trap. A detailed account of the data analysis is given, and systematic effects due to unwanted excitation processes and collisions with background gas atoms are discussed and estimated. From a total of 6805 shelving events, we obtain a lifetime tau=1149+/-14(stat.)+/-4(sys.)ms, a result which is in agreement with the most recent measurements.

arXiv comment10 pages, 7 figures. Submitted for publication

References in corpus (4)

• Quantum dynamics of cold trapped ions, with application to quantum computation
• Coherence of qubits based on single Ca${}^{+}$ ions
• Precision Measurement of the Lifetime of the 3d D_{5/2} state in 40Ca+
• Search for correlation effects in linear chains of trapped ions

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