<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi>Sr</mml:mi><mml:mprescripts /><mml:none /><mml:mn>87</mml:mn></mml:mmultiscripts></mml:math>Lattice Clock with Inaccuracy below<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mn>10</mml:mn><mml:mrow><mml:mo>−</mml:mo><mml:mn>15</mml:mn></mml:mrow></mml:msup></mml:math>

Boyd, Martin M.; Ludlow, Andrew D.; Blatt, Sebastian; Foreman, Seth M.; Ido, T.; Zelevinsky, Tanya; Ye, Jun

doi:10.1103/physrevlett.98.083002

Cited by 175 publications

(131 citation statements)

References 33 publications

(36 reference statements)

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“…Both of those results are in agreement with the experimental values of 813.428(1) nm [21][22][23][24] and 914(1) nm [27]. This confirms our calculation procedure.…”

Section: A Strontiumsupporting

confidence: 82%

Magic wavelengths for terahertz clock transitions

Zhou

Chen

et al. 2010

Phys. Rev. A

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Magic wavelengths for laser trapping of boson isotopes of alkaline-earth Sr, Ca and Mg atoms are investigated while considering terahertz clock transitions between the 3 P 0 , 3 P 1 , 3 P 2 metastable triplet states. Our calculation shows that magic wavelengths of trapping laser do exist. This result is important because those metastable states have already been used to realize accurate clocks in the terahertz frequency domain. Detailed discussions for magic wavelength for terahertz clock transitions are given in this paper.

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“…Both of those results are in agreement with the experimental values of 813.428(1) nm [21][22][23][24] and 914(1) nm [27]. This confirms our calculation procedure.…”

Section: A Strontiumsupporting

confidence: 82%

Magic wavelengths for terahertz clock transitions

Zhou

Chen

et al. 2010

Phys. Rev. A

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“…Systems using strontium and calcium [2,3,4,5,6,7] have recently been shown to outperform state-ofthe-art Cs clocks in terms of stability and the accuracy of some optical ion frequency standards is already limited by the accuracy of the best Cs clocks [8,9].…”

Section: Introductionmentioning

confidence: 99%

Absolute frequency measurement of the magnesium intercombination transitionS01→P13

et al. 2008

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Absolute frequency measurement of the magnesium intercombination transition 1 S 0 We report on a frequency measurement of the (3s 2 ) 1 S0 → (3s3p) 3 P1 clock transition of 24 Mg on a thermal atomic beam. The intercombination transition has been referenced to a portable primary Cs frequency standard with the help of a femtosecond fiber laser frequency comb. The achieved uncertainty is 2.5 × 10 −12 which corresponds to an increase in accuracy of six orders of magnitude compared to previous results. The measured frequency value permits the calculation of several other optical transitions from 1 S0 to the 3 PJ -level system for 24 Mg, 25 Mg and 26 Mg. We describe in detail the components of our optical frequency standard like the stabilized spectroscopy laser, the atomic beam apparatus used for Ramsey-Bordé interferometry and the frequency comb generator and discuss the uncertainty contributions to our measurement including the first and second order Doppler effect. An upper limit of 3 × 10 −13 in one second for the short term instability of our optical frequency standard was determined by comparison with a GPS disciplined quartz oscillator.

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“…It is mostly caused by a variety of new applications in the physics of ultra cold atoms: from laser cooling and trapping [1,2,3] to optical frequency standards [4,5,6,7].…”

Section: Introductionmentioning

confidence: 99%

Line shapes of optical Feshbach resonances near the intercombination transition of bosonic ytterbium

Borkowski¹,

Ciuryło²,

Julienne

et al. 2009

Phys. Rev. A

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The properties of bosonic Ytterbium photoassociation spectra near the intercombination transition 1 S0-3 P1 are studied theoretically at ultra low temperatures. We demonstrate how the shapes and intensities of rotational components of optical Feshbach resonances are affected by mass tuning of the scattering properties of the two colliding ground state atoms. Particular attention is given to the relationship between the magnitude of the scattering length and the occurrence of shape resonances in higher partial waves of the van der Waals system. We develop a mass scaled model of the excited state potential that represents the experimental data for different isotopes. The shape of the rotational photoassociation spectrum for various bosonic Yb isotopes can be qualitatively different.

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Sr87Lattice Clock with Inaccuracy below10−15

Cited by 175 publications

References 33 publications

Magic wavelengths for terahertz clock transitions

Magic wavelengths for terahertz clock transitions

Absolute frequency measurement of the magnesium intercombination transitionS01→P13

Line shapes of optical Feshbach resonances near the intercombination transition of bosonic ytterbium

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