Magnetic trapping of Yb in the metastable<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mi /><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup><mml:msub><mml:mi>P</mml:mi><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>state

Pandey, Kanhaiya; Rathod, K. D.; Pal, Semanti; Natarajan, Vasant

doi:10.1103/physreva.81.033424

Cited by 9 publications

(10 citation statements)

References 20 publications

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“…Representative fluorescence spectra for the even isotope 174 Yb obtained by scanning each of the three lasers have been shown in our previous work [9]. For the odd isotope 173 Yb used in this work, the number of hyperfine levels and the electric dipole selection rules shows that there are 9 possible transitions at 770 nm, of which 6 are used for the measurement.…”

Section: Methodsmentioning

confidence: 63%

“…Measurements on upper levels is an experimental challenge because these levels are not directly populated. We have earlier solved this problem by using dipole-allowed transitions to pump atoms into the metastable 3 P 2 state of Yb [9]. In this work, we use the same method to populate this state, and then measure the absolute frequencies of various hyperfine transitions on the 3 P 2 → 3 S 1 line.…”

Section: Introductionmentioning

confidence: 99%

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Observation of the nuclear magnetic octupole moment of173Yb from precise measurements of the hyperfine structure in the3P2state

2013

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We measure hyperfine structure in the metastable 3 P 2 state of 173 Yb and extract the nuclear magnetic octupole moment. We populate the state using dipole-allowed transitions through the 3 P 1 and 3 S1 states. We measure frequencies of hyperfine transitions of the 3 P 2 → 3 S1 line at 770 nm using a Rb-stabilized ring cavity resonator with a precision of 200 kHz. Second-order corrections due to perturbations from the nearby 3 P 1 and 1 P 1 states are below 30 kHz. We obtain the hyperfine coefficients as: A = −742.11(2) MHz, B = 1339.2(2) MHz, which represent two orders-of-magnitude improvement in precision, and C = 0.54(2) MHz. From atomic structure calculations, we obtain the nuclear moments: quadrupole Q = 2.46(12) b and octupole Ω = −34.4(21) b ×µN .

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Section: Methodsmentioning

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Observation of the nuclear magnetic octupole moment of173Yb from precise measurements of the hyperfine structure in the3P2state

2013

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“…The current best atomic dipole measurement is an experiment is in the diamagnetic species, Hg, by the Washington group [73]. Many other groups are looking for EDMs in diamagnetic (that is, net electron spin S = 0), ground-state electronic levels in Hg [73], Xe [74][75][76][77], Rn [78], Yb [79] and Ra [67,[80][81][82]. Experiments on diamagnetic atoms (with net electron spin S = 0) are sensitive to new physics predominantly via the nucleonic contribution to the Schiff moment of the corresponding atomic nucleus.…”

Section: A Comparative Survey Of Ongoing Experimental Workmentioning

confidence: 99%

High-resolution spectroscopy on trapped molecular ions in rotating electric fields: A new approach for measuring the electron electric dipole moment

Leanhardt

Bohn

Loh

et al. 2011

Journal of Molecular Spectroscopy

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High-resolution molecular spectroscopy is a sensitive probe for violations of fundamental symmetries. Symmetry violation searches often require, or are enhanced by, the application of an electric field to the system under investigation. This typically precludes the study of molecular ions due to their inherent acceleration under these conditions. Circumventing this problem would be of great benefit to the high-resolution molecular spectroscopy community since ions allow for simple trapping and long interrogation times, two desirable qualities for precision measurements. Our proposed solution is to apply an electric field that rotates at radio frequencies. We discuss considerations for experimental design as well as challenges in performing precision spectroscopic measurements in rapidly time-varying electric fields. Ongoing molecular spectroscopy work that could benefit from our approach is summarized. In particular, we detail how spectroscopy on a trapped diatomic molecular ion with a ground or metastable 3 ∆1 level could prove to be a sensitive probe for a permanent electron electric dipole moment (eEDM).

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“…Laser cooling and trapping of Yb [1][2][3] is different from the more common alkali-metal atoms because of its spin-zero ground state. It has two cooling transitions (one strong and one weak) with widely differing Doppler temperature limits, and does not require the use of a repumping laser.…”

Section: Introductionmentioning

confidence: 99%

Atomic fountain of laser-cooled Yb atoms for precision measurements

Pandey

Rathod²,

Singh³

et al. 2010

Phys. Rev. A

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We demonstrate launching of laser-cooled Yb atoms in a cold atomic fountain. Atoms in a collimated thermal beam are first cooled and captured in a magneto-optic trap (MOT) operating on the strongly-allowed ${^1S}_0 \rightarrow {^1P}_1$ transition at 399~nm (blue line). They are then transferred to a MOT on the weakly-allowed ${^1S}_0 \rightarrow {^3P}_1$ transition at 556~nm (green line). Cold atoms from the green MOT are launched against gravity at a velocity of around 2.5~m/s using a pair of green beams. We trap more than $10^7$ atoms in the blue MOT and transfer up to 70\% into the green MOT. The temperature for the odd isotope, $^{171}$Yb, is $\sim$1~mK in the blue MOT, and reduces by a factor of 40 in the green MOT.Comment: 6 pages, 7 figure

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Magnetic trapping of Yb in the metastable3P2state

Cited by 9 publications

References 20 publications

Observation of the nuclear magnetic octupole moment of173Yb from precise measurements of the hyperfine structure in the3P2state

Observation of the nuclear magnetic octupole moment of173Yb from precise measurements of the hyperfine structure in the3P2state

High-resolution spectroscopy on trapped molecular ions in rotating electric fields: A new approach for measuring the electron electric dipole moment

Atomic fountain of laser-cooled Yb atoms for precision measurements

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