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 . 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 (ppb). The measured value of is . The deduced value of the fine-structure constant is (91) with a relative uncertainty of .
11 More- Received 21 June 2006
DOI:https://doi.org/10.1103/PhysRevA.74.052109
©2006 American Physical Society