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Quantum projection noise limited interferometry with coherent atoms in a Ramsey type setup

Doering, Daniel; McDonald, Gordon; Debs, John; Figl, Cristina; Altin, Paul; Bachor, Hans; Robins, Nicholas; Close, John


Every measurement of the population in an uncorrelated ensemble of two-level systems is limited by what is known as the quantum projection noise limit. Here, we present quantum-projection-noise-limited performance of a Ramsey-type interferometer using freely propagating coherent atoms. The experimental setup is based on an electro-optic modulator in an inherently stable Sagnac interferometer, optically coupling the two interfering atomic states via a two-photon Raman transition. Going beyond...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.81.043633


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