Atom-molecule dephasing in an SU(1,1) interferometer based on the stimulated dissociation of a molecular Bose-Einstein condensate

I. Tikhonenkov, A. Vardi

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Abstract

We propose to implement a sub-shot-noise matter-wave interferometer via the stimulated dissociation of a molecular Bose-Einstein condensate and study the collisional loss of atom-molecule coherence during its phase-acquisition time. The obtained n -atom states are two-atom [SU(1,1)] coherent states with number variance Δn□n compared to Δn□n for the spin [SU(2)] coherent states formed by coherent splitting of an atomic condensate. Consequently, the Lorentzian atom-molecule phase diffusion is faster than the Gaussian phase diffusion between separated atomic condensates by a n factor.

Original languageEnglish
Article number051604
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume80
Issue number5
DOIs
StatePublished - 25 Nov 2009

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