Nondestructive probing of Rabi oscillations on the cesium clock transition near the standard quantum limit

We report on the nondestructive observation of Rabi oscillations on the Cs clock transition. The internal atomic state evolution of a dipole-trapped ensemble of cold atoms is inferred from the phase shift of a probe laser beam as measured using a Mach-Zehnder interferometer. We describe a single col...

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Bibliographic Details
Published in:Physical review letters 2008-03, Vol.100 (10), p.103601-103601, Article 103601
Main Authors: Windpassinger, P J, Oblak, D, Petrov, P G, Kubasik, M, Saffman, M, Alzar, C L Garrido, Appel, J, Müller, J H, Kjaergaard, N, Polzik, E S
Format: Article
Language:English
Subjects:
Astrophysics
ATOMS
CESIUM
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DIPOLES
LASERS
MACH-ZEHNDER INTERFEROMETER
OSCILLATIONS
PHASE SHIFT
Physics
QUANTUM MECHANICS
SPIN
TRAPPING
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Summary:We report on the nondestructive observation of Rabi oscillations on the Cs clock transition. The internal atomic state evolution of a dipole-trapped ensemble of cold atoms is inferred from the phase shift of a probe laser beam as measured using a Mach-Zehnder interferometer. We describe a single color as well as a two-color probing scheme. Using the latter, measurements of the collective pseudospin projection of atoms in a superposition of the clock states are performed and the observed spin fluctuations are shown to be close to the standard quantum limit.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.100.103601