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High-Precision Quantum-Enhanced Gravimetry with a Bose-Einstein Condensate

Szigeti, Stuart; Nolan, Samuel P.; Close, John; Haine, Simon


We show that the inherently large interatomic interactions of a Bose-Einstein condensate (BEC) can enhance the sensitivity of a high precision cold-atom gravimeter beyond the shot-noise limit (SNL). Through detailed numerical simulation, we demonstrate that our scheme produces spin-squeezed states with variances up to 14 dB below the SNL, and that absolute gravimetry measurement sensitivities between two and five times below the SNL are achievable with BECs between 104 and 106 in atom number....[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.125.100402
Access Rights: Open Access


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