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From Newton to the Path Integral

A physics research program developing a unified structural narrative from Newtonian mechanics through action principles, Dirac notation, path integrals, deformation quantization, and renormalization — with parallel Lean 4 formalization of key theorems.


What This Is

The cornerstone manuscript ("From Newton to the Path Integral", ~23 pp, target: Physics Reports) argues that quantization is not a recipe applied to classical mechanics but a refinement passage: a sequence of composable local approximations whose continuum limits force specific structures.

The central chain is:

Newton's polygon  →  continuous action  →  path integral
    →  deformed algebra  →  renormalized theory  →  unified framework

Each arrow is a compatibility condition. The paper shows that three recurring obstructions (singular probes, ordering/discretization ambiguity, UV divergences) are resolved by the same structural move — controlled refinement — and that the fundamental constants ℏ, c, G each emerge as the unique coupling forced by one such compatibility condition.

Thirteen satellite papers (6–14 pp each) extract and expand specific aspects of this Refinement Compatibility Principle (RCP) framework for targeted publication.


How the Articles Were Created

The manuscripts were developed through an incremental AI-assisted workflow using three tiers of Claude models in a haiku → sonnet → opus pipeline:

  • Haiku (Claude's fastest model) produced rapid first drafts and exploratory iterations, enabling high-throughput generation of candidate arguments, section outlines, and worked examples.

  • Sonnet (Claude's balanced model) refined structure, ensured mathematical consistency, resolved cross-references between sections, and integrated feedback from internal review cycles.

  • Opus (Claude's most capable model) performed final deep review: style tightening, Lean-vs-markdown consistency audits, and prose compression to meet journal page limits.

This tiered pipeline allowed broad exploration at low cost while concentrating the most capable model on quality-critical decisions.

Referee Loop

After drafting, each section underwent an author–referee loop where an Opus-class referee reviewed for correctness, Lean-status fidelity, and adherence to style rules, while a Sonnet-class author made fixes. The loop continued until the referee gave ACCEPT.

Section Loops to ACCEPT
§1 Introduction 3
§2 Notation 2
§3 Newtonian 3
§4 Action 2
§5 Dirac 3
§6 Composition 2
§7 Deformation 2
§8 Renormalization 3
§9 Unified 4
§10 Appendices 3
Satellite: Measurement-Composition 2
Satellite: Synthesis (Origin of ℏ) 2

Common issues caught by the referee: Lean status mismatches (sorry vs proved), hedging language, tautological formalizations, missing Lean table entries, vacuous True stubs labeled as "trivial," process commentary, and textbook material that didn't advance the novel claim.


Repository Structure

physres1/
│
├── paper/                        # Cornerstone manuscript
│   ├── main.md                   # Full paper (Pandoc markdown + LaTeX math)
│   ├── main.tex / main.pdf       # Compiled versions
│   ├── sections/                 # Section-by-section source files
│   │   ├── section01_introduction.md
│   │   ├── section02_notation.md
│   │   ├── section03_newtonian.md
│   │   ├── section04_action.md
│   │   ├── section05_dirac.md
│   │   ├── section06_composition.md
│   │   ├── section07_deformation.md
│   │   ├── section08_renormalization.md
│   │   ├── section09_unified.md
│   │   └── section10_appendices.md
│   ├── notes/                    # Working notes and sanity checks
│   ├── reviews/                  # Referee reports and responses
│   └── bibliography.md           # Citation keys
│
├── papers/                       # Satellite papers (full submissions)
│   └── measurement-composition/  # Example with referee rounds
│
├── docs/                         # Jekyll site (GitHub Pages)
│   ├── index.md
│   ├── main-paper/main.pdf
│   └── <satellite>/main.md       # One subdirectory per satellite
│
├── lean/                         # Lean 4 formalization
│   ├── lakefile.lean
│   ├── PhysRes/
│   │   ├── Core.lean
│   │   ├── CompositionLaw.lean
│   │   ├── DeformationQuantization.lean
│   │   ├── Renormalization.lean
│   │   ├── MainPaper/            # Section-by-section Lean files
│   │   └── Satellites/           # Lean files for satellite results
│   └── README.md                 # Build instructions and theorem status
│
├── notebooks/                    # Exploratory calculation notes
├── blackboards/                  # Shared working space for agent reasoning
├── meta/                         # Kanban, publication tracking, research state
├── pub-track/                    # Submission records (sent/, rejected/)
├── agents/                       # Agent memory and shared protocols
├── sources/                      # Ingested reference documents
└── scripts/                      # Compilation and utility scripts

Lean 4 Formalization

The lean/ directory contains machine-checked verification of key theorems, built with Mathlib4.

The paper distinguishes between theorems that are fully proved in Lean and those carrying sorry placeholders pending completion of the formal argument.

Proved theorems (selected)

Lean theorem Paper reference Content
necessity_of_action_scale P4.2 ℏ is dimensionally forced by composition
exponential_form_forced P4.1 W[path] ∝ exp(iS/ℏ) from algebra
semigroup_normalization D4.1 t^{−d/2} from refinement closure
renormalized_observable_limit P6.1 Observable independence from scheme
flow_generator_from_refinement P6.2 β-function from semigroup
classical_compatibility P5.1 ℏ→0 limit recovery

Proof sketches (sorry placeholders)

Several theorems require analytic tools not yet fully available in Mathlib:

  • Infinite-product measures for genuine path integrals
  • Distributional calculus for Dirac delta limits
  • Differential geometry for the Van Vleck bi-half-density result
  • Spectral theory for curved-space examples

CI runs lake build on every push via .github/workflows/lean-check.yml.

To build locally:

cd lean/
lake build

Satellite Papers

Thirteen companion papers develop specific RCP channels:

Channel Papers
Partition (temporal composition) path-integral-normalization, rooted-tree-bookkeeping, dirac-probes-corners-impulses
Representation (ordering equivalence) ordering-equivalence, half-density-qft
Scale (renormalization group) rg-fundamental, rcp-foundations, delta-objects
Classical foundations relativistic-central-orbits, action-angle-indeterminacy
Geometric/half-density planck-area, half-density-qft

See papers/README.md for the full cross-reference network and publication status. The planck-area paper has been posted to clawXiv (2602.00073).


Compilation

Papers are written in Pandoc-compatible markdown with inline LaTeX math.

pandoc -f markdown+tex_math_single_backslash -s paper/main.md -o paper/main.pdf

Page estimates (elsarticle 3p twocolumn):

bash scripts/count-pages.sh

About

From Newton to the path integral: research on action principles, deformation quantization, renormalization and Lean formalization.

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