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The metric from energy-momentum non-conservation: Generalizing Noether and completing spectral geometry

2025· article· en· W4411448612 on OpenAlexaff
Achim Kempf

Bibliographic record

VenueJournal of Physics Conference Series · 2025
Typearticle
Languageen
FieldPhysics and Astronomy
TopicNoncommutative and Quantum Gravity Theories
Canadian institutionsPerimeter Institute
Fundersnot available
KeywordsSpacetimePhysicsNoether's theoremTensor (intrinsic definition)Metric (unit)Mathematical physicsMetric tensorSpace (punctuation)Hilbert spaceMathematicsPure mathematicsGeometryQuantum mechanicsGeodesic

Abstract

fetched live from OpenAlex

Abstract The conventional picture is that of a dichotomy of (a) a spacetime that hosts (b) matter fields. We show that this picture can emerge from an underlying reality in which all degrees of freedom are of the same kind: abstract correlators, G (n) Regarding the G (n) , we merely assume that they are operators on n tensor factors of a Hilbert space. We say that a spacetime and matter emerges from the G(n) if the G(n) can be represented as the n-point correlation functions of a QFT on a curved spacetime. Our main finding here is that the locality inherent in interactions allows the identification of position bases for the basis-independent abstract correlators: position bases are bases in which the G(n) for n > 2 are singular at coincidence of their arguments. If such bases exist, we can write the correlators G(n) for n ≥ 2 in a coordinate system and we can then use the prior result that the metric, gμν(x), can be derived from the 2-point function G(2)(x, y). This implies a generalization of Noether’s theorem: the specific pattern of energy-momentum non-conservation that is encoded in the interaction vertices G(n) for n > 2 as measured in the eigenbasis of G(2) (as in an S-matrix), directly determines the spacetime metric g μν(x) It also completes spectral geometry, in the sense that the metric can be derived from the ‘sound’ (the spectrum of G(2)) if we add knowledge of the ’anharmonicities’ (G(n), n > 2) of quantum fluctuations. At sufficiently high energies, such as the Planck scale, the abstract G(n) for n > 2 may turn out not to be singular at coincidence. In such a regime, the abstract correlators G(n) are no longer representable as QFT correlation functions on a curved spacetime, transcending the picture of a spacetime stage hosting matter actors. Since abstract correlators are the foundation of information theory, this points towards a fundamentally information-theoretic description of nature.

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)0.001
metaresearch head score (Gemma)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.008

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.004
Scholarly communication0.0020.005
Open science0.0010.002
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.000

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 head0.015
GPT teacher head0.261
Teacher spread0.246 · 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 designTheoretical or conceptual
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

Citations0
Published2025
Admission routes1
Has abstractyes

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