Double-slit interferometry with a Bose-Einstein condensate

Year: 2005

Authors: Collins L.A., Pezzé L., Smerzi A., Berman G.P., Bishop A.R.

Autors Affiliation: Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA; Univ Trent, Ist Nazl Fis Mat, BEC, CRS, I-38050 Povo, Italy; Univ Trent, Dipartimento Fis, I-38050 Povo, Italy.

Abstract: A Bose-Einstein double-slit interferometer has been recently realized experimentally by Y. Shin , Phys. Rev. Lett. 92 050405 (2004). We analyze the interferometric steps by solving numerically the time-dependent Gross-Pitaevskii equation in three-dimensional space. We focus on the adiabaticity time scales of the problem and on the creation of spurious collective excitations as a possible source of the strong degradation of the interference pattern observed experimentally. The role of quantum fluctuations is discussed.

Journal/Review: PHYSICAL REVIEW A

Volume: 71 (3)      Pages from: 33628-1  to: 33628-6

KeyWords: Phase; Interference; Atoms; Transition; Coherence; Solitons; Arrays
DOI: 10.1103/PhysRevA.71.033628

Citations: 8
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