AWhat changed
McGuirk and colleagues operated two light-pulse atom accelerometers as a gravity gradiometer. They characterized common-mode vibration rejection and measured a tidal acceleration signal, and presented interference fringes and tests of sensitivity to platform motion. A source archive supplies the eleven original figures missing from the generated preprint PDF.
Scientific scope
McGuirk and colleagues operated two light-pulse atom accelerometers as a gravity gradiometer. They characterized common-mode vibration rejection and measured a tidal acceleration signal, and presented interference fringes and tests of sensitivity to platform motion. A source archive supplies the eleven original figures missing from the generated preprint PDF. The actual apparatus separation was approximately 1.4 m. The abstract’s sensitivity and accuracy expressed for a 10 m baseline are scaled or inferred, not demonstrated with a 10 m instrument. Accuracy is inferred from tidal-model comparisons over limited runs and is not independently validated here. An earlier 1998 atom-gradiometer demonstration is a separate contribution. Separate experimental data and simulation replay, individual full-name identity mapping, and final published-version comparison remain open.
Evidence
The linked original works support the scoped statement and contribution attribution. WRS has not independently replayed experiments or reconstructed a full mathematical proof. The actual apparatus separation was approximately 1.4 m. The abstract’s sensitivity and accuracy expressed for a 10 m baseline are scaled or inferred, not demonstrated with a 10 m instrument. Accuracy is inferred from tidal-model comparisons over limited runs and is not independently validated here. An earlier 1998 atom-gradiometer demonstration is a separate contribution. Separate experimental data and simulation replay, individual full-name identity mapping, and final published-version comparison remain open.
Contributors
- The named authors in the research record · SCIENCE: These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
- Sensitive Absolute Gravity Gradiometry Using Atom Interferometry
- McGuirk et al. author-preprint v1 source archive and figures
Provisional WRS assessment, edition 2026-10-28.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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