MétaCan
Menu
Back to cohort
Record W4210972090 · doi:10.1017/chol9780521591041.016

Theories of space-time in modern physics

2003· book-chapter· en· W4210972090 on OpenAlexaff
Luciano Boi

Bibliographic record

VenueCambridge University Press eBooks · 2003
Typebook-chapter
Languageen
FieldPhysics and Astronomy
TopicQuantum Mechanics and Applications
Canadian institutionsUniversité du Québec à Montréal
Fundersnot available
KeywordsBohr modelEinsteinPhysicistTheoretical physicsTheory of relativityPhysicsStatic interpretation of timeSchrödinger's catModern physicsProblem of timeSpecial relativitySpacetimeSpace (punctuation)Matter wavePhilosophyQuantum mechanicsMathematical physicsQuantumFour-forceTest theories of special relativityQuantum gravity

Abstract

fetched live from OpenAlex

INTRODUCTION Among the most important events of twentieth-century physics, we must surely count the development of the special and the general theories of relativity by Einstein in 1905 and 1916, and that of quantum mechanics, which was worked out about ten years later by Bohr, Heisenberg, Schrödinger, and de Broglie. Owing to these theories, the physicist’s conception of space-time underwent two major upheavals. Although they apply on different scales, the general theory of relativity and the quantum field theory play a fundamental role in describing the natural world, so a complete description of nature must encompass both of them. The formal attempt to quantise general relativity, however, leads to nonsensical infinite formulas. In the sixties non-Abelian gauge theory emerged as a framework for describing all natural forces except gravity; however, at the same time, the inconsistency between general relativity and quantum field theory emerged clearly as the limitation of twentieth-century physics. The resulting problem is a theorists’ problem par excellence : experiments provide little help, and the inconsistency illustrates the intermingling of philosophical, mathematical, and physical thought. It is a fact of great significance that every physical theory of some generality and scope, whether it is a classical or a quantum theory, a particle or a field theory, presupposes a space-time geometry for the formulation of its laws and for its interpretation, and the choice of this geometry predetermines to some extent the laws which are taken to govern the behaviour of matter. Thus Newton’s classical mechanics (and especially its law of gravitation) is based on the assumption of an absolute simultaneity relation between events and a Euclidean geometry; similarly, the physical principle of the universal proportionality of inertial and gravitational mass, as recognised by Einstein between 1907 and 1915, requires the assignment of a non-integrable, that is, path-dependent, linear connection with non-vanishing curvature to space-time (the law of parallel displacement).

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)0.001
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: Other · Consensus signal: Other
Teacher disagreement score0.007
Threshold uncertainty score0.024

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.002
Science and technology studies0.0020.007
Scholarly communication0.0030.005
Open science0.0010.001
Research integrity0.0010.003
Insufficient payload (model declined to judge)0.0070.002

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 head0.012
GPT teacher head0.190
Teacher spread0.178 · 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
GenreOther

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

Citations1
Published2003
Admission routes1
Has abstractyes

Explore more

Same venueCambridge University Press eBooksSame topicQuantum Mechanics and ApplicationsFrench-language works237,207