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Record W3157816815 · doi:10.1103/prxquantum.2.040333

Gravitational Redshift Tests with Atomic Clocks and Atom Interferometers

2021· article· en· W3157816815 on OpenAlexafffund
Fabio Di Pumpo, Christian Ufrecht, Alexander Friedrich, Enno Giese, Wolfgang P. Schleich, W. G. Unruh

Bibliographic record

VenuePRX Quantum · 2021
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAdvanced Frequency and Time Standards
Canadian institutionsUniversity of British Columbia
FundersNatural Sciences and Engineering Research Council of CanadaHagler Institute for Advanced Study, Texas A&M UniversityBundesministerium für Wirtschaft und EnergieMinisterium für Wissenschaft, Forschung und Kunst Baden-WürttembergDeutsches Zentrum für Luft- und RaumfahrtDeutsche ForschungsgemeinschaftTexas A and M UniversityCarl-Zeiss-StiftungAlexander von Humboldt-StiftungTexas AgriLife Research
KeywordsGravitational redshiftAtom interferometerAstronomical interferometerRedshiftPhysicsAtomic clockGravitationAtom (system on chip)AstrophysicsAstronomyAtomic physicsInterferometryGalaxyComputer science

Abstract

fetched live from OpenAlex

Based on the standard derived from atomic clocks, the essential working principles of gravitational redshift tests are transferred to atom interferometers, highlighting the resulting quantum tests of general relativity.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.005
metaresearch head score (Gemma)0.020
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.005
Threshold uncertainty score0.027

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0050.020
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0040.003
Science and technology studies0.0010.008
Scholarly communication0.0030.006
Open science0.0020.007
Research integrity0.0020.003
Insufficient payload (model declined to judge)0.0030.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.009
GPT teacher head0.256
Teacher spread0.247 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations45
Published2021
Admission routes2
Has abstractyes

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