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Multi-pass guided atomic Sagnac interferometer for high-performance rotation sensing by Moukouri, Samuel; Japha, Yonathan; Keil, Mark; David, Tal; Groswasser, David; Givon, Menachem; Folman, Ron is a scholarly article available to read on EtoBox.

What is Multi-pass guided atomic Sagnac interferometer for high-performance rotation sensing about?

Matter-wave interferometry with atoms propagating in a guiding potential is expected to provide compact, scalable and precise inertial sensing. However, a rotation sensing device based on the Sagnac effect with atoms guided in a ring has not yet been implemented despite continuous efforts during the last two decades. Here we discuss some intrinsic effects that limit the coherence in such a device and propose a scheme that overcomes these limitations and enables a multi-pass guiding Sagnac interferometer with a Bose-Einstein condensate (BEC) on a chip in a ring potential. We analyze crucial dephasing effects: potential roughness, phase diffusion due to atom-atom interactions and number uncertainty, and phase fluctuations. Owing to the recent progress in achieving high momentum beam splitting, creating smooth guides, and manipulating the matter-wavepacket propagation, guided interferometry can be implemented within the coherence time allowed by phase diffusion. Despite the lower particle flux in a guided Sagnac ring and the miniaturization of the interferometer, the estimated sensitivity, for reasonable and practical realizations of an atom chip-based gyroscope, is comparable to that

Author

Moukouri, Samuel; Japha, Yonathan; Keil, Mark; David, Tal; Groswasser, David; Givon, Menachem; Folman, Ron

Published

2021

Language

EN