We use Bloch oscillations to transfer coherently many photon momenta to
atoms. Then we can measure accurately the recoil velocity $k/m$ and
deduce the fine structure constant $\alpha$. The velocity variation due to
Bloch oscillations is measured using atom interferometry. This method yields to
a value of the fine structure constant $\alpha^-1= 137.035 999 45 (62)$ with
a relative uncertainty of about $4.5 10^-9$.
Description
Determination of the fine structure constant with atom interferometry
and Bloch oscillations
%0 Generic
%1 Cadoret2008
%A Cadoret, Malo
%A Mirandes, Estefania De
%A Cladé, Pierre
%A Schwob, Catherine
%A Nez, François
%A Julien, Lucile
%A Biraben, François
%A Guellati-Khélifa, Saïda
%D 2008
%K fine-structure-constant imported
%T Determination of the fine structure constant with atom interferometry
and Bloch oscillations
%U http://arxiv.org/abs/0812.3139
%X We use Bloch oscillations to transfer coherently many photon momenta to
atoms. Then we can measure accurately the recoil velocity $k/m$ and
deduce the fine structure constant $\alpha$. The velocity variation due to
Bloch oscillations is measured using atom interferometry. This method yields to
a value of the fine structure constant $\alpha^-1= 137.035 999 45 (62)$ with
a relative uncertainty of about $4.5 10^-9$.
@misc{Cadoret2008,
abstract = { We use Bloch oscillations to transfer coherently many photon momenta to
atoms. Then we can measure accurately the recoil velocity $\hbar k/m$ and
deduce the fine structure constant $\alpha$. The velocity variation due to
Bloch oscillations is measured using atom interferometry. This method yields to
a value of the fine structure constant $\alpha^{-1}= 137.035 999 45 (62)$ with
a relative uncertainty of about $4.5 \times 10^{-9}$.
},
added-at = {2008-12-20T21:28:28.000+0100},
author = {Cadoret, Malo and Mirandes, Estefania De and Cladé, Pierre and Schwob, Catherine and Nez, François and Julien, Lucile and Biraben, François and Guellati-Khélifa, Saïda},
biburl = {https://www.bibsonomy.org/bibtex/2b1486c63db920a4510ced7341ddf128a/michael.sherbon},
description = {Determination of the fine structure constant with atom interferometry
and Bloch oscillations},
interhash = {03d4af4d0f2f9fc3b0f07a054e4c2ac9},
intrahash = {b1486c63db920a4510ced7341ddf128a},
keywords = {fine-structure-constant imported},
note = {cite arxiv:0812.3139
},
timestamp = {2009-01-05T20:23:45.000+0100},
title = {Determination of the fine structure constant with atom interferometry
and Bloch oscillations},
url = {http://arxiv.org/abs/0812.3139},
year = 2008
}