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Precise measurement of h ∕ m Rb using Bloch oscillations in a vertical optical lattice: Determination of the fine-structure constant

Precise measurement of h ∕ m Rb using Bloch oscillations in a vertical optical lattice:... Bloch oscillations in a frequency-chirped optical lattice are a powerful tool to transfer coherently many photon momenta to atoms. We have used this method to measure accurately the ratio h ∕ m Rb . In this paper we detail the experimental procedure and we present a complete analysis of the different systematic effects. They yield a global relative uncertainty of 13 parts per 10 9 (ppb). The measured value of h ∕ m Rb is 4.591 359 29 ( 6 ) × 10 − 9 m 2 s − 1 . The deduced value of the fine-structure constant is α − 1 = 137.035 998 84 (91) with a relative uncertainty of 6.7 ppb . http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review A American Physical Society (APS)

Precise measurement of h ∕ m Rb using Bloch oscillations in a vertical optical lattice: Determination of the fine-structure constant

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References (6)

Publisher
American Physical Society (APS)
Copyright
Copyright © 2006 The American Physical Society
ISSN
1094-1622
DOI
10.1103/PhysRevA.74.052109
Publisher site
See Article on Publisher Site

Abstract

Bloch oscillations in a frequency-chirped optical lattice are a powerful tool to transfer coherently many photon momenta to atoms. We have used this method to measure accurately the ratio h ∕ m Rb . In this paper we detail the experimental procedure and we present a complete analysis of the different systematic effects. They yield a global relative uncertainty of 13 parts per 10 9 (ppb). The measured value of h ∕ m Rb is 4.591 359 29 ( 6 ) × 10 − 9 m 2 s − 1 . The deduced value of the fine-structure constant is α − 1 = 137.035 998 84 (91) with a relative uncertainty of 6.7 ppb .

Journal

Physical Review A – American Physical Society (APS)

Published: Nov 1, 2006

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