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arXiv · 2209.06549

Spin squeezing enhanced dual species atom interferometric accelerometer employing large momentum transfer for precision test of the equivalence principle

Jinyang Li·Gregório R. M. da Silva·Schuyler Kain·Jason Bonacum·David D. Smith·Timothy Kovachy·Selim M. Shahriar
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Abstract

We theoretically investigate the feasibility of applying spin squeezing to a light pulse atom interferometer in the presence of large momentum transfer using off-resonant Raman transitions, in order to enhance the sensitivity of accelerometry close to the Heisenberg limit. We also show how to implement this scheme in a dual-species atom interferometer for precision test of the equivalence principle by measuring the Eotvos parameter, and identify the spin squeezing protocol that is best suited for such an experiment. For a space borne platform in low earth orbit, such a scheme may eventually enable the measurement of the Eotvos parameter with a sensitivity of the order of 10^(-20).

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Jinyang Li, Gregório R. M. da Silva, Schuyler Kain, Jason Bonacum, David D. Smith, Timothy Kovachy, Selim M. Shahriar. 2023-02-18. Spin squeezing enhanced dual species atom interferometric accelerometer employing large momentum transfer for precision test of the equivalence principle. https://doi.org/10.1103/physrevd.108.024011

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