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We present a theoretical analysis of aliasing noises that might appear in cold atom Mach-Zehnder interferometers used for the measurement of various physical quantities. We focus more specifically on single cold atom gyroscopes. To evaluate the level of aliasing noises, we have developed a model based on the power spectral densities of the different identified noise sources as input parameters and...
At the Swiss Federal Office of Metrology and Accreditation (METAS), the watt balance apparatus has undergone important changes in the magnetic circuit. A new magnet design has been carefully studied, experimentally tested and successfully integrated in the existing set-up. The details of this development as well as new alignment capabilities are described
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