Theoretical Analysis of a Large Momentum Beamsplitter using Bloch Oscillations

Pierre Cladé (1) , Thomas Plisson (1) , Saïda Guellati-Khélifa (1) , François Nez (1) , François Biraben (1)

1 LKB (Jussieu) - Laboratoire Kastler Brossel

In this paper, we present the implementation of Bloch oscillations in an atomic interferometer to increase the separation of the two interfering paths. A numerical model, in very good agreement with the experiment, is developed. The contrast of the interferometer and its sensitivity to phase fluctuations and to intensity fluctuations are also calculated. We demonstrate that the sensitivity to phase fluctuations can be significantly reduced by using a suitable arrangement of Bloch oscillations pulses.

Mots clés: Atom interferometer; large momentum beamsplitter; Bloch oscillations

Domaines: Physique Atomique [physics.atom-ph]

Pierre Cladé, Thomas Plisson, Saïda Guellati-Khélifa, François Nez, François Biraben. Theoretical Analysis of a Large Momentum Beamsplitter using Bloch Oscillations. 2010. ⟨hal-00503824⟩