Abstract
We report on the development of a superconducting cavity stabilized oscillator (SCSO) for use as a high-stability frequency source and for precision measurements. The SCSO system in its optimized condition has a potential frequency stability of parts in 1017 to 1018 over short measurement times (up to 103 s). It can also operate in two resonant modes, which provides useful diagnostics of sources of frequency instability. This paper describes the progress of applying our SCSO to precise measurements of the equation of state of 4He gas near T λ and the concepts of using SCSO in conjunction with other ground and space clocks to perform tests of gravitational and relativistic physics.
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Corcovilos, T.A., Strayer, D.M., Asplund, N. et al. Mugti-frequency Superconducting Cavity Stabilized Oscillators (SCSO) for Quantum-Gas Measurements and Gravitational Physics. Journal of Low Temperature Physics 134, 431–436 (2004). https://doi.org/10.1023/B:JOLT.0000012591.58110.9c
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DOI: https://doi.org/10.1023/B:JOLT.0000012591.58110.9c