Prospects for Precise Measurements with Echo Atom Interferometry

Barrett, Brynle; Carew, Adam; Beica, Hermina C.; Vorozcovs, Andrejs; Pouliot, Alexander; Kumarakrishnan, A.

doi:10.3390/atoms4030019

Open AccessArticle

Prospects for Precise Measurements with Echo Atom Interferometry

by

Brynle Barrett

^1,2,

Adam Carew

¹,

Hermina C. Beica

^1,*,

Andrejs Vorozcovs

¹,

Alexander Pouliot

¹ and

A. Kumarakrishnan

¹

Department of Physics & Astronomy, York University, 4700 Keele, Toronto ON M3J 1P3, Canada

²

Institut d’Optique d’Aquitaine, rue François Mitterand, Talence 33400, France

^*

Author to whom correspondence should be addressed.

Atoms 2016, 4(3), 19; https://doi.org/10.3390/atoms4030019

Submission received: 30 March 2016 / Revised: 20 June 2016 / Accepted: 21 June 2016 / Published: 27 June 2016

(This article belongs to the Special Issue Atom Interferometry)

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Abstract

Echo atom interferometers have emerged as interesting alternatives to Raman interferometers for the realization of precise measurements of the gravitational acceleration g and the determination of the atomic fine structure through measurements of the atomic recoil frequency

ω_{q}

. Here we review the development of different configurations of echo interferometers that are best suited to achieve these goals. We describe experiments that utilize near-resonant excitation of laser-cooled rubidium atoms by a sequence of standing wave pulses to measure

ω_{q}

with a statistical uncertainty of 37 parts per billion (ppb) on a time scale of ∼50 ms and g with a statistical precision of 75 ppb. Related coherent transient techniques that have achieved the most statistically precise measurements of atomic g-factor ratios are also outlined. We discuss the reduction of prominent systematic effects in these experiments using off-resonant excitation by low-cost, high-power lasers.

Keywords: atom interferometry; metrology; laser-cooling and trapping

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MDPI and ACS Style

Barrett, B.; Carew, A.; Beica, H.C.; Vorozcovs, A.; Pouliot, A.; Kumarakrishnan, A. Prospects for Precise Measurements with Echo Atom Interferometry. Atoms 2016, 4, 19. https://doi.org/10.3390/atoms4030019

AMA Style

Barrett B, Carew A, Beica HC, Vorozcovs A, Pouliot A, Kumarakrishnan A. Prospects for Precise Measurements with Echo Atom Interferometry. Atoms. 2016; 4(3):19. https://doi.org/10.3390/atoms4030019

Chicago/Turabian Style

Barrett, Brynle, Adam Carew, Hermina C. Beica, Andrejs Vorozcovs, Alexander Pouliot, and A. Kumarakrishnan. 2016. "Prospects for Precise Measurements with Echo Atom Interferometry" Atoms 4, no. 3: 19. https://doi.org/10.3390/atoms4030019

APA Style

Barrett, B., Carew, A., Beica, H. C., Vorozcovs, A., Pouliot, A., & Kumarakrishnan, A. (2016). Prospects for Precise Measurements with Echo Atom Interferometry. Atoms, 4(3), 19. https://doi.org/10.3390/atoms4030019

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Prospects for Precise Measurements with Echo Atom Interferometry

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