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Ramsey Resonance in a Zacharias Fountain
Open accessAbstract
We report a realization of Zacharias's 1953 proposal for observing a Ramsey resonance in an atomic fountain. Launched upward from a moving optical molasses where they have been cooled to ∼ 5 μK, cesium atoms pass once through a microwave cavity, continue to the summit of their trajectory, then fall again through the same cavity, completing the separated-fields interaction. The atoms spend 0.25 s in free flight above the cavity. Linewidth (2 Hz) and S/N imply a stability of 3·10 -12 τ -1/2 , at least as good as in existing Cs clocks, with eventual expected improvements of 10 2 .
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Cited by
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Chu, S. (1998) · Reviews of Modern Physics · doi:10.1103/revmodphys.70.685 · Cited by 919
Wynands, R., & Weyers, S. (2005) · Metrologia · doi:10.1088/0026-1394/42/3/s08 · Cited by 374
Adiabatic Cooling of Cesium to 700 nK in an Optical Lattice
Kastberg, A., Phillips, W. D., Rolston, S. L., Spreeuw, R. J. C., & Jessen, P. S. (1995) · Physical Review Letters · doi:10.1103/physrevlett.74.1542 · Cited by 260
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Metadata
- Authors
- Clairon, A., Salomon, C., Guellati, S., & Phillips, W. D.
- Venue
- Europhysics Letters (EPL)
- Publisher
- IOP Publishing
- Published
- 1991-09-07
- Volume
- 16
- Issue
- 2
- Pages
- 165-170
- ISSN
- 0295-5075 (ISSN-L)
- 1286-4854
- OpenAlex
- W2002365364
- Cited by
- 223
- References
- 0
- FWCI
- 7.08
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: Ramsey Resonance in a Zacharias Fountain. https://app.cochat.ai/papers/10.1209/0295-5075/16/2/008
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- Clairon, A., Salomon, C., Guellati, S., & Phillips, W. D. (1991). Ramsey Resonance in a Zacharias Fountain. Europhysics Letters (EPL). https://doi.org/10.1209/0295-5075/16/2/008
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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