Nonlinear beam splitter in Bose-Einstein-condensate interferometers

Year: 2006

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

Autors Affiliation: Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA; Univ Trent, BEC, CNR, INFM, I-38050 Trento, Italy; Univ Trent, Dipartimento Fis, I-38050 Trento, Italy.

Abstract: A beam splitter is an important component of an atomic/optical Mach-Zehnder interferometer. Here we study a Bose-Einstein condensate beam splitter, realized with a double well potential of tunable height. We analyze how the sensitivity of a Mach-Zehnder interferometer is degraded by the nonlinear particle-particle interaction during the splitting dynamics. We distinguish three regimes, Rabi, Josephson and Fock, and associate to them a different scaling of the phase sensitivity with the total number of particles.

Journal/Review: PHYSICAL REVIEW A

Volume: 74 (3)      Pages from: 33610-1  to: 33610-8

KeyWords: Mach-zehnder Interferometer; Squeezed States; Double-well; Phase; Atoms; Limit; Gases
DOI: 10.1103/PhysRevA.74.033610

Citations: 27
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