Hyperfine Structure and Isotope Shifts in Dy II

Papa, Dylan Del; Holt, R.A.; Rosner, S. D.

doi:10.3390/atoms5010005

Cited by 6 publications

(2 citation statements)

References 30 publications

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“…Further, the ratio of the heights of these peaks is r = 1.20 ± 0.06, consistent with the natural abundance ratio of 164 Dy and 162 Dy (r = 1.11). (Only one high-resolution spectroscopic study of Dy + ions has been published [27], but that work does not provide hyperfine constants or isotope shifts for the J = 17/2 → J = 15/2 Dy + line studied here). We chose to study this Dy + line due to its convenient overlap with an existing 397 nm probe laser in our laboratory -nevertheless, the ease with which an unexplored line in a complex ion such as Dy + can be spectroscopically studied using buffer gas cooling is indicative of the wider applicability of this technique.…”

Section: Resultsmentioning

confidence: 99%

Cold, dense, atomic ion clouds produced by cryogenic buffer-gas cooling

2019

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We produce cold and dense clouds of atomic ions (Ca + , Dy + ) by laser ablation of metal targets and cryogenic buffer gas cooling of the resulting plasma. We measure the temperature and density of the ion clouds using laser absorption spectroscopy. We find that large ion densities ( 10 9 cm −3 ) can be obtained at temperatures as low as 6 K. Our method opens up new ways to study cold neutral plasmas, and to perform survey spectroscopy of ions that cannot be laser-cooled easily.

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Section: Resultsmentioning

confidence: 99%

Cold, dense, atomic ion clouds produced by cryogenic buffer-gas cooling

2019

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“…, F . The hyperfine structure of different atoms has been described in a number of publications [131][132][133][134][135][136][137][138][139][140][141][142]. The trapping of spinor atoms is accomplished in optical traps [143].…”

Section: Hyperfine Structurementioning

confidence: 99%

Dipolar and spinor bosonic systems

Yukalov

2018

Laser Phys.

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The main properties and methods of describing dipolar and spinor atomic systems, composed of bosonic atoms or molecules, are reviewed. The general approach for the correct treatment of Bose-condensed atomic systems with nonlocal interaction potentials is explained. The approach is applied to Bose-condensed systems with dipolar interaction potentials. The properties of systems with spinor interaction potentials are described. Trapped atoms and atoms in optical lattices are considered. Effective spin Hamiltonians for atoms in optical lattices are derived. The possibility of spintronics with cold atom is emphasized. The present review differs from the previous review articles by concentrating on a thorough presentation of basic theoretical points, helping the reader to better follow mathematical details and to make clearer physical conclusions.Cold atomic and molecular bosonic systems have recently been the objects of intensive research, both experimental and theoretical. First, the attention has been concentrated on dilute systems, composed of particles characterized by local interaction potentials, independent of spins, whose properties are well described by the s-wave scattering length. There are several books [1-4] and review articles [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] covering different aspects of such bosonic systems with spin-independent local interaction potentials.In the present review, bosonic atoms or molecules are treated interacting through nonlocal interaction potentials, such as dipolar potential, and interacting through spinor forces that are local but depending on the effective spins related to hyperfine states. Although there exist reviews devoted to dipolar [20][21][22][23][24][25] and spinor [26,27] systems (see also [3,28]) the present paper differs from them in the following aspects. First, our aim here is not a brief enumeration of particular cases, numerical calculations, and different experiments, but the attention here is concentrated on the principal theoretical points allowing for the correct treatment of dipolar and spinor systems. Second, more attention is payed to the derivation of effective spin Hamiltonians for atoms and molecules in optical lattices. Third, the possibility of spintronics with cold atoms and molecules, interacting through dipolar and spinor forces, is discussed.The exposition of the material is organized so that the main mathematical points be clear to the reader. More technical details can be found in the tutorials [29,30]. Throughout the paper, the system of units is employed where the Boltzmann and Planck constants are set to one, k B = 1 and = 1.As is evident, the equation for the vacuum coherent field (2.40) differs form the equation (2.34) for the condensate function that is a coherent field, but, generally, not the vacuum coherent field. Equation (2.40) is a particular case of (2.34), where there are no uncondensed particles, so that ρ 1 , σ 1 , as well as ξ, are zero.One often confuses equation (2.40) for the vacuum coherent field with me...

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