Atom interferometry based on light pulses: Application to the high precision measurement of the ratio h/m and the determination of the fine structure constant

Cadoret, Malo; Mirandes, E. de; Cladé, Pierre; Nez, F.; Julién, L.; Biraben, F.; Guellati-Khélifa, Saïda

doi:10.1140/epjst/e2009-01046-2

Cited by 27 publications

(19 citation statements)

References 54 publications

(59 reference statements)

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“…2 Applications of AIs stretch from high-precision apparatus, such as gyroscopes, 3 gravimeters, 4-6 gravity gradiometers [7][8][9] and magnetic gradiometers, 10 to the measurement of physical constants, such as fine structure constant, 11 gravitational constant, 12 quadratic Zeeman coefficient, 13 etc.…”

Section: Introductionmentioning

confidence: 99%

Towards a juggling 87Rb atomic dual fountain

Yang

Luo³

et al. 2018

AIP Advances

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This paper presents methods for achieving and optimizing a Juggling Atomic Dual Fountain (JADF) of alkali atom 87Rb with one magneto-optical trap (MOT) vacuum chamber. The height difference of this two atomic fountains is 30 cm, the temperature and atom number of each atomic cloud are 2.0±0.2 μK and 1.4(±0.05)×108, respectively. The dependence of the recaptured atom number on the height of the pre-launched atomic cloud is investigated. This JADF provides a low temperature, large atom number and common-mode noise elimination atomic source for developing a highly stable, compact atomic gravity gradiometer. At the request of the authors, this article is being retracted effective 8 April 2019.

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Section: Introductionmentioning

confidence: 99%

Towards a juggling 87Rb atomic dual fountain

Yang

Luo³

et al. 2018

AIP Advances

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“…An opportune system for the study of coherence is a Bose-Einstein condensate loaded into a double-well optical trap, known as a "BEC dimer" or "bosonic Josephson junction": it is both amenable to theoretical analysis and realizable in current experiments. Highlights of past work on the BEC dimer include the demonstrations of matter-wave interferometry [10], number squeezing [11][12][13][14][15] and measurements transcending the standard quantum limit [16,17], as well as applications such as gravity detectors [18] and noise thermometers [19].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of entanglement in a dissipative Bose-Hubbard dimer

et al. 2013

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We study the connection between the semiclassical phase space of the Bose-Hubbard dimer and inherently quantum phenomena in this model, such as entanglement and dissipation-induced coherence. Near the semiclassical self-trapping fixed points, the dynamics of EPR entanglement and condensate fraction consists of beats among just three eigenstates. Since persistent EPR entangled states arise only in the neighborhood of these fixed points, our analysis explains essentially all of the entanglement dynamics in the system. We derive accurate analytical approximations by expanding about the strong-coupling limit; surprisingly, their realm of validity is nearly the entire parameter space for which the self-trapping fixed points exist. Finally, we show significant enhancement of entanglement can be produced by applying localized dissipation.

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“…To be sensitive to new physics in a consistent manner one should use in the calculation of the magnetic moment a value of α EM determined by another independent measurement, as for example by interferometry of rubidium atoms [63,64]. In light of these prospects we will also investigate the shifts of the anomalous magnetic moment a e of the electron due to Z loops.…”

Section: Experimental Statusmentioning

confidence: 99%

Purely flavor-changing Z ′ bosons and where they might hide

Foldenauer

Jaeckel

2017

J. High Energ. Phys.

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A plethora of ultraviolet completions of the Standard Model have extra U(1) gauge symmetries. In general, the associated massive Z gauge boson can mediate flavorchanging neutral current processes at tree level. We consider a situation where the Z boson couples solely via flavor-changing interactions to quarks and leptons. In this scenario the model parameter space is, in general, quite well constrained by existing flavor bounds. However, we argue that cancellation effects shelter islands in parameter space from strong flavor constraints and that these can be probed by multipurpose collider experiments like ATLAS or CMS as well as LHCb in upcoming runs at the LHC. In still allowed regions of parameter space these scenarios may help to explain the current tension between theory and experiment of (g − 2) µ as well as a small anomaly in τ decays.

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Atom interferometry based on light pulses: Application to the high precision measurement of the ratio h/m and the determination of the fine structure constant

Cited by 27 publications

References 54 publications

Towards a juggling 87Rb atomic dual fountain

Towards a juggling 87Rb atomic dual fountain

Dynamics of entanglement in a dissipative Bose-Hubbard dimer

Purely flavor-changing Z ′ bosons and where they might hide

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