| Numéro |
J. Phys. IV France
Volume 135, October 2006
|
|
|---|---|---|
| Page(s) | 3 - 7 | |
| DOI | https://doi.org/10.1051/jp4:2006135002 | |
| Publié en ligne | 23 novembre 2006 | |
Neuvième colloque sur les lasers et l'optique quantique
C. Chardonnet et G. Millot
J. Phys. IV France 135 (2006) 3-7
DOI: 10.1051/jp4:2006135002
1 Laboratoire Kastler Brossel, École Normale Supérieure, CNRS, 4 place Jussieu, 75252 Paris Cedex 05, France
e-mail: schwob@spectro.jussieu.fr
2 European Laboratory for Non-Linear Spectroscopy, University of Florence, via Nello Carrara 1, 50019-Sesto-Fiorentino, Florence, Italy
3 INM, Conservatoire National des Arts et Métiers, 292 rue Saint Martin, 75141 Paris Cedex 03, France
(Published online 23 November 2006)
© EDP Sciences 2006
C. Chardonnet et G. Millot
J. Phys. IV France 135 (2006) 3-7
DOI: 10.1051/jp4:2006135002
Bloch oscillations of ultracold atoms: A tool for metrological measurements
P. Cladé1, M. Cadoret1, E. De Mirandes2, S. Guellati-Khélifa3, C. Schwob1, F. Nez1, L. Julien1 and F. Biraben11 Laboratoire Kastler Brossel, École Normale Supérieure, CNRS, 4 place Jussieu, 75252 Paris Cedex 05, France
e-mail: schwob@spectro.jussieu.fr
2 European Laboratory for Non-Linear Spectroscopy, University of Florence, via Nello Carrara 1, 50019-Sesto-Fiorentino, Florence, Italy
3 INM, Conservatoire National des Arts et Métiers, 292 rue Saint Martin, 75141 Paris Cedex 03, France
(Published online 23 November 2006)
Abstract
We show that Bloch oscillations of ultracold atoms in an optical
lattice are a strong tool to measure accurately some physical
constants. We describe in this paper two experimental approaches
using a pure and an accelerated vertical standing waves to perform
respectively a determination of the local acceleration of gravity
g to ppm precision and of the fine structure constant 
with a relative uncertainty of 6,7 ppb.
© EDP Sciences 2006