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arXiv · 2108.13516

Progress towards a matter wave interferometer for inertial sensing with non-destructive monitoring of Bloch oscillations

D. Rivero·C. Beli Silva·M. A. Moreno Armijo·H. Keßler·H. F. da Silva·G. Comito·R. F. Shiozaki·R. C. Teixeira·Ph. W. Courteille
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Abstract

We report on our progress in the construction of a continuous matter-wave interferometer for inertial sensing via the non-destructive observation of Bloch oscillations. At the present stage of the experiment, around $10^5$strontium-88 atoms are cooled down to below 1$\mu${\mu}K. Pumped by lasers red-tuned with respect to the 7.6 kHz broad intercombination transition of strontium, the two counterpropagating modes of the ring cavity form a one-dimensional optical lattice in which the atoms, accelerated by gravity, will perform Bloch oscillations. The atomic motion can be monitored in real-time via its impact on the counterpropagating light fields. We present the actual state of the experiment and characterize the laser spectrometer developed to drive the atom-cavity interaction.

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D. Rivero, C. Beli Silva, M. A. Moreno Armijo, H. Keßler, H. F. da Silva, G. Comito, R. F. Shiozaki, R. C. Teixeira, Ph. W. Courteille. 2021-08-30. Progress towards a matter wave interferometer for inertial sensing with non-destructive monitoring of Bloch oscillations. https://doi.org/10.1007/s00340-022-07772-4

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