Isotope-selective trapping of doubly charged Yb ions

Schauer, Martin; Danielson, J.R.; Feldbaum, D.; Rahaman, M.S.; Wang, Li-Bang; Zhang, J.; Zhao, Xinxin; Torgerson, J. R.

doi:10.1103/physreva.82.062518

Cited by 9 publications

(21 citation statements)

References 22 publications

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“…Like trapping of singly ionized atoms, trapping of multiply ionized atoms are subject of recent research interest in physics due to their competence as candidates of fundamental constants and use for frequency standards in the microwave region. Trapped Yb III has been proposed already as a good candidate to use for most sensitive test of time variation of the fine-structure constant [1,2]. Similarly, trapped 229 Th IV has been considered to have potentiality to use as nuclear clock [1,3].…”

Section: Introductionmentioning

confidence: 99%

“…Trapped Yb III has been proposed already as a good candidate to use for most sensitive test of time variation of the fine-structure constant [1,2]. Similarly, trapped 229 Th IV has been considered to have potentiality to use as nuclear clock [1,3]. So it is natural to investigate on some other multiply ionized atoms to propose them in this category for their such applications.…”

Section: Introductionmentioning

confidence: 99%

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Ab initiocalculations of transition amplitudes and hyperfineAandBconstants of Ga iii

et al. 2013

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In this paper, the E1, E2 and M1 transition amplitudes are calculated along with the hyperfine A and B constants of doubly ionized gallium using the relativistic coupled-cluster approach. Electron correlations and the Gaunt interactions are considered to all orders using the coupled-cluster theory in the relativistic framework and their contributions are discussed explicitly in the calculations of all these amplitudes. Some interesting features of the correlation effects on the Gaunt interactions are noticed in the calculations of the hyperfine constants. Lifetimes of some low-lying states are also calculated using the transition amplitudes obtained by the present theory and the experimental transition energies. The calculated E1 transition amplitudes and lifetimes are in good agreement with the results obtained by the other theories and experiment. The hyperfine splitting of the ground states of 71 Ga III and 69 Ga III are found to be about 35 and 27.5 GHz, respectively, which shows the importance of these isotopes for the possible use of microwave frequency standards. The calculated hyperfine constants are associated with line width estimations of some transition lines in the visible and ultraviolet regions of electromagnetic spectrum.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ab initiocalculations of transition amplitudes and hyperfineAandBconstants of Ga iii

et al. 2013

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“…5 For our geometry (h/ f = 5. 67 and Ω µ = 0.94 · 8π/3) the overlap is maximized by w = 2.26 f to be η = 98.2% (see Fig. 2b).…”

Section: A Finding the Optimum Field Modementioning

confidence: 91%

“…10 It can be shown in a fully quantum-mechanical calculation that an exponentially rising pulse with proper time-constant indeed leads to full excitation of the atom [66]. 11 YbIII has been created by electron-impact ionization from a cloud of trapped YbII ions [67]. We recently accomplished the controlled photo-ionization from YbII to YbIII.…”

Section: B Generation Of Exponentially Increasing Pulsesmentioning

confidence: 99%

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Photon-Atom Coupling with Parabolic Mirrors

Sondermann

Leuchs

2015

Engineering the Atom-Photon Interaction

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Efficient coupling of light to single atomic systems has gained considerable attention over the past decades. This development is driven by the continuous growth of quantum technologies. The efficient coupling of light and matter is an enabling technology for quantum information processing and quantum communication. And indeed, in recent years much progress has been made in this direction. But applications aside, the interaction of photons and atoms is a fundamental physics problem. There are various possibilities for making this interaction more efficient, among them the apparently 'natural' attempt of mode-matching the light field to the free-space emission pattern of the atomic system of interest. Here we will describe the necessary steps of implementing this mode-matching with the ultimate aim of reaching unit coupling efficiency. We describe the use of deep parabolic mirrors as the central optical element of a free-space coupling scheme, covering the preparation of suitable modes of the field incident onto these mirrors as well as the location of an atom at themirror's focus. Furthermore, we establish a robust method for determining the efficiency of the photon-atom coupling

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