Frequency measurement of the 1S0, F=5/2↔3P1, F=7/2 transition of 27Al+ via quantum logic spectroscopy with 40Ca+. (1st October 2019)

• Record Type: Journal Article
• Authors: Guggemos, M; Guevara-Bertsch, M; Heinrich, D; Herrera-Sancho, O A; Colombe, Y; Blatt, R; Roos, C F
• Is Part Of: New journal of physics. Volume 21:Number 10(2019:Oct.)
• Publication Date: 2019-10-01
• Subjects: trapped ions -- mixed ion crystals -- quantum logic spectroscopy -- frequency standard -- metrology; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1367-2630/ab447a
• Languages: English
• ISSNs: 1367-2630

Abstract

Abstract: We perform quantum logic spectroscopy with a 27 Al + / 40 Ca + mixed ion crystal in a linear Paul trap for a measurement of the ( 3 s 2 ) 1 S 0 ↔ ( 3 s 3 p ) 3 P 1, F = 7 / 2 intercombination transition in 27 Al + . Towards this end, Ramsey spectroscopy is used for probing the transition in 27 Al + and the ( 4 s 2 ) S 1 / 2 ↔ ( 4 s 3 d ) D 5 / 2 clock transition in 40 Ca + in interleaved measurements. By using the precisely measured frequency of the clock transition in 40 Ca + as a frequency reference, we determine the frequency of the intercombination line to be ν 1 S 0 ↔ 3 P 1, F = 7 / 2 = 1 122 842 857 334 736 (85) Hz and the Landé g -factor of the excited state to be g 3 P 1, F = 7 / 2 = 0.428 133(2).