Phase modulation detection of a strontium atom interferometer gyroscope

Abstract

We demonstrate a strontium thermal beam atom interferometer gyroscope (AIG) on a rotation table using the ${}^1{S}_0$-${}^3{P}_1$ intercombination line, and measure large rotation rates exceeding 6 rad/s. Our demonstration relies upon a transit-time-resonant (TTR), phase modulation technique for detecting the AIG phase which rejects signal background and variations in fringe amplitude.

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