Phys. Rev. Lett. 81, 971–974 (1998)

Measurement of the Earth's Gravity Gradient with an Atom Interferometer-Based Gravity Gradiometer

Abstract

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M. J. Snadden, J. M. McGuirk, P. Bouyer^*, K. G. Haritos^†, and M. A. Kasevich
Physics Department, Yale University, New Haven, Connecticut 06520

Received 22 January 1998; published in the issue dated 3 August 1998

We report the demonstration of an atom interferometer-based gravity gradiometer. The gradiometer uses stimulated two-photon Raman transitions to measure the relative accelerations of two ensembles of laser cooled atoms. We have used this instrument to measure the gradient of the Earth's gravitational field.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.81.971

DOI:

10.1103/PhysRevLett.81.971

PACS:

39.20.+q, 03.75.Dg, 04.80.-y, 32.80.Pj

^*Present address: Groupe d'Optique Atomique, Institut d'Optique Théorique et Appliqué, BP 147, 91403 Orsay, France.

^†Present address: Hewlett-Packard Laboratories, 3500 Deer Creek Road, Palo Alto, CA 94304.

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Phys. Rev. Lett. 81, 971–974 (1998)

Measurement of the Earth's Gravity Gradient with an Atom Interferometer-Based Gravity Gradiometer