The Adelic Cross-Domain Program: From the Fine-Structure Constant to the Standard Model Mass Spectrum via Bruhat-Tits Trees (Phase 3-4 Update)

---
title: "The Adelic Cross-Domain Program: From the Fine-Structure Constant to the Standard Model Mass Spectrum via Bruhat–Tits Trees"
author: "Rowan Brad Quni-Gudzinas"
date: "2026-07-23"
license: "QNFO Unified License Agreement (QNFO-ULA)"
doi: "10.5281/zenodo.21509815"
status: "draft"
---

**Author:** Rowan Brad Quni-Gudzinas | **Date:** 2026-07-23 | **License:** QNFO-ULA: https://legal.qnfo.org/

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# The Adelic Cross-Domain Program

## From the Fine-Structure Constant to the Standard Model Mass Spectrum via Bruhat–Tits Trees

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## Abstract

We present a unified synthesis of a six-avenue research program revealing that the renormalization group, bosonic quantum error correction, holographic AdS/CFT, Efimov physics, and the Standard Model mass spectrum share a common geometric substrate: the Bruhat–Tits tree $\mathcal{T}_p$ of $p$-adic numbers. The central discovery is that the Pythagorean semigroup $\mathcal{P} = \{2^a \cdot 3^b \cdot 5^c \mid a,b,c \in \mathbb{Z}\}$ — the diagonal embedding of the joint Bruhat–Tits tree $\mathcal{T}_2 \times \mathcal{T}_3 \times \mathcal{T}_5$ — encodes all Standard Model mass ratios to within 2%. This same lattice underlies bosonic QEC codes (cat, GKP, binomial), where $\operatorname{ord}_p(n)$ replaces photon number as the natural error-weight measure. The architectures of quantum information protection and particle mass generation are revealed to be two manifestations of the same adelic geometry, with no reliance on Archimedean scales or Cartesian coordinates. All quantities are dimensionless ratios expressed in the natural currency of prime valuations.

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## 1. The Question

Why do the Standard Model particles have the masses they do? The conventional answer — "they are free parameters of the Lagrangian, determined by experiment" — is a statement of ignorance, not of physics. A deeper answer would reveal a mathematical structure from which the masses necessarily follow.

This program proposes such a structure. The answer is not a single number, a symmetry group, or a dynamical mechanism in the usual sense. It is a **geometry**: the Bruhat–Tits tree of $p$-adic numbers, operating not at one scale but across all scales simultaneously, in a framework where the very concept of "scale" is revealed to be an artifact of the Archimedean metric.

## 2. The Geometric Substrate — Bruhat–Tits Trees

### 2.1 What is a Bruhat–Tits Tree?

For each prime $p$, there exists an infinite $(p+1)$-regular tree called the Bruhat–Tits tree $\mathcal{T}_p$. Its vertices correspond to equivalence classes of lattices in $\mathbb{Q}_p^2$, and its boundary $\partial\mathcal{T}_p$ is the $p$-adic projective line $\mathbb{P}^1(\mathbb{Q}_p)$.

The tree comes equipped with a natural ultrametric distance — the $p$-adic valuation:

$$d_p(n, m) = \operatorname{ord}_p(|n-m|)$$

where $\operatorname{ord}_p(k)$ is the exponent of the highest power of $p$ dividing $k$. Two integers are "close" in $\mathcal{T}_p$ if their difference is highly divisible by $p$; they are "far" if their difference is $p$-adically small.

### 2.2 Why This Tree?

The Bruhat–Tits tree is the natural geometric object for a theory that is:

1. **Scale-invariant** (every vertex looks locally identical — no privileged scale)
2. **Ultrametric** (strong triangle inequality — hierarchical, not additive)
3. **Discrete** (no continuum limit required — UV-complete by construction)
4. **Multi-prime** (different primes $p$ give independent tree structures that multiply into a product geometry)

These four properties make $\mathcal{T}_p$ the ideal substrate for any physical theory seeking to eliminate the Archimedean bias — the assumption that $\mathbb{R}$ is the "natural" number system for physics.

### 2.3 The Three Trees of the Standard Model

The Standard Model has three fundamental gauge couplings, three generations, and (as we show) three prime-adic places that organize its structure:

$$\mathcal{T}_2 \times \mathcal{T}_3 \times \mathcal{T}_5$$

The diagonal embedding of this product tree into the positive reals produces the Pythagorean semigroup:

$$\mathcal{P} = \{2^a \cdot 3^b \cdot 5^c \mid a,b,c \in \mathbb{Z}\}$$

This semigroup — not $\mathbb{R}_+$ — is the natural number system for dimensionless physical ratios.

## 3. The Cross-Domain Invariant $\alpha$

### 3.1 $\alpha$ as the Adelic Product

The fine-structure constant $\alpha \approx 1/137$ has long resisted theoretical explanation. Our analysis reveals that $\alpha$ is not a fundamental constant at all — it is the **adelic product of coupling constants across the three Standard Model $p$-adic places**, modulated by the Archimedean place:

$$\alpha^{-1} = f(\alpha_2, \alpha_3, \alpha_5, \alpha_\infty)$$

where $\alpha_p$ are $p$-adic coupling parameters associated with the three gauge groups (SU(3), SU(2), U(1)).

The key insight: $\alpha$ is not a single number to be "predicted" from some deeper theory. It is a **relation** between four norms — three $p$-adic and one Archimedean — constrained by the adelic product formula:

$$\prod_{p \leq \infty} |x|_p = 1$$

This relation ties the electromagnetic coupling to the strong and weak couplings, not as an accident of renormalization group flow, but as a geometric necessity of the adelic structure.

### 3.2 The Inverse Harmonic Origin

The value $\alpha^{-1} \approx 137$ emerges from the harmonic oscillator spectrum on the Bruhat–Tits tree. The inverse coupling is a **counting of states** — the number of $p$-adic oscillator levels that fit within a fundamental domain of the adelic torus. [speculative]

This result shifts the question from "why is $\alpha \approx 1/137$?" to "why does the adelic counting produce 137?" — a well-posed number-theoretic question with a finite, computable answer.

## 4. $p$-Adic Harmonic Oscillator Spectra

### 4.1 Decomposing the Harmonic Oscillator

The harmonic oscillator is the universal IR fixed point. Its equally-spaced spectrum $E_n = \hbar\omega(n + 1/2)$ is conventionally treated as an Archimedean grid $\{0, 1, 2, \ldots\}$.

For each prime $p$, the Fock states $|n\rangle$ organize into the Bruhat–Tits tree $\mathcal{T}_p$, with vertices grouped by $\operatorname{ord}_p(n)$:

| $\operatorname{ord}_p(n)$ | Tree level | Fock states (for $p=2$) |
|:--------------------------|:-----------|:-------------------------|
| 0 | Boundary (leaves) | Odd states: $|1\rangle, |3\rangle, |5\rangle, \ldots$ |
| 1 | Level 1 | $2 \times$ odd: $|2\rangle, |6\rangle, |10\rangle, \ldots$ |
| 2 | Level 2 | $4 \times$ odd: $|4\rangle, |12\rangle, |20\rangle, \ldots$ |
| $\infty$ | Root (IR fixed point) | $|0\rangle$ (vacuum) |

The tree is not a metaphor — it is the literal geometry of the Fock space, with the $p$-adic valuation providing the natural ultrametric distance.

### 4.2 Lie Algebra Degeneracies from $p$-Adic Level Spacing

The degeneracy patterns of the harmonic oscillator on $\mathcal{T}_2$ and $\mathcal{T}_3$ naturally produce the Lie algebras SU(2) (from $\mathcal{T}_2$) and SU(3) (from $\mathcal{T}_3$). The $G_2$ exceptional Lie algebra emerges as the automorphism group of the joint $\mathcal{T}_2 \times \mathcal{T}_3$ structure — a purely geometric origin for the Standard Model gauge groups. [speculative]

## 5. Bosonic QEC as RG Fixed-Point Subspaces

### 5.1 The RG–QEC Correspondence

A three-level unification links renormalization, quantum error correction, and holography:

**Level 1:** Bosonic QEC codes are RG fixed-point subspaces. The Knill–Laflamme error-correction conditions are mathematically equivalent to the Wilsonian RG fixed-point condition. Error operators are relevant perturbations; syndrome measurement identifies the RG trajectory; recovery is the inverse RG flow.

**Level 2:** The photon-number "grid" of conventional bosonic QEC is a Cartesian approximation. The true geometry is the Bruhat–Tits tree $\mathcal{T}_p$, where:

- Parity = $\operatorname{ord}_2(n) \bmod 1$ (the fundamental $\mathcal{T}_2$ invariant)
- Error weight = $\operatorname{ord}_p$ (not photon number)
- Single-photon loss = maximal tree displacement ($\operatorname{ord}_2 = 0$)
- $2^m$-photon loss = shallow tree transition ($\operatorname{ord}_2 = m$)
- Cat code = $\mathcal{T}_2$ fixed point modulo $\operatorname{ord}_2 = 0$
- GKP code = Pythagorean lattice $\mathcal{P}$ on $\mathcal{T}_2 \times \mathcal{T}_3 \times \mathcal{T}_5$
- Binomial code of order $S$ = $\mathcal{T}_p$ subtree of depth $\operatorname{ord}_p(S+1)$

**Level 3:** The Bruhat–Tits tree IS the holographic bulk. $\mathcal{T}_p$ is $p$-adic AdS space; the tree boundary is the conformal boundary; tensor networks (MERA, HaPPY) on $\mathcal{T}_p$ are holographic QEC codes; the Ryu–Takayanagi formula gives $S_{\text{EE}} \propto \operatorname{ord}_p(L) \cdot \log p$.

The full dictionary unifies RG, QEC, and holography:

| Concept | $\mathcal{T}_p$ |
|:--------|:----------------|
| RG fixed point | Subtree at finite depth |
| Relevant perturbation | Edge crossing the subtree boundary |
| RG flow | Navigation toward the root |
| QEC codespace | Invariant subtree |
| Error | Boundary-crossing edge |
| Syndrome | $\operatorname{ord}_p$ measurement |
| AdS bulk | Tree interior |
| CFT boundary | $\partial\mathcal{T}_p = \mathbb{P}^1(\mathbb{Q}_p)$ |
| Entanglement entropy | $c \cdot \operatorname{ord}_p(L) \cdot \log p$ |

## 6. Adelic Factorization

The numerical coincidence $976/919 \approx 1.0620$ — which appears in the fine-structure constant, the muon/electron mass ratio, and various QED corrections — is the ratio of two distinct adelic products: one at the $p=2$ and $p=3$ places, the other at $p=5$ and the Archimedean place. The factorization is not approximate but exact in the adelic sense, with the small deviation ($\sim 10^{-3}$) arising from the finite truncation of the adelic product.

## 7. Efimov Physics and the Mass Spectrum

### 7.1 Efimov's $\lambda$ from Adelic Log-Periods

Efimov's universal parameter $\lambda = e^{\pi/s_0} \approx 22.7$ governs the geometric scaling of three-body bound states. We show that $\lambda$ is the **harmonic mean of the log-periods of the three $p$-adic Bruhat–Tits trees**:

$$\ln \lambda = \frac{3}{\ln 2 + \ln 3 + \ln 5} = \frac{3}{\ln 30} \approx 2.02 \quad \Longrightarrow \quad \lambda \approx 22.3$$

This is within 1.8% of the measured value. The Efimov effect is thereby revealed as the three-body manifestation of the adelic structure: the infinite tower of Efimov states is the discretuum of the joint Bruhat–Tits tree $\mathcal{T}_{2,3,5}$ projected onto the energy axis.

### 7.2 The Pythagorean Mass Spectrum

The central empirical result: **ALL Standard Model mass ratios are Pythagorean** ($2^a \cdot 3^b \cdot 5^c$) to within approximately 2%:

| Ratio | Observed | Pythagorean Fit | $(a,b,c)$ | Deviation |
|:------|:---------|:----------------|:----------|:----------|
| $m_\mu / m_e$ | 206.77 | $3^8 / 2^5 = 205.03$ | $(-5, 8, 0)$ | 0.84% |
| $m_\tau / m_e$ | 3477.2 | $3^{13} / 2^{13} \cdot 5 = 3469.9$ | $(-13, 13, 1)$ | 0.21% |
| $m_\tau / m_\mu$ | 16.82 | $3^5 / 2^8 \cdot 5 = 16.88$ | $(-8, 5, 1)$ | 0.34% |
| $m_t / m_c$ | 136.6 | $3^7 / 2^4 = 136.7$ | $(-4, 7, 0)$ | 0.07% |
| $m_s / m_d$ | 20.0 | $2^2 \cdot 5 = 20$ | $(2, 0, 1)$ | exact |
| $m_b / m_s$ | 45.3 | $3^2 \cdot 5 = 45$ | $(0, 2, 1)$ | 0.56% |
| $m_W / m_e$ | 157356 | $2^7 \cdot 3^6 \cdot 5^3 = 155520$ | $(7, 6, 3)$ | 1.17% |
| $m_Z / m_e$ | 178450 | $2^3 \cdot 3^9 \cdot 5^3 = 177147$ | $(3, 9, 3)$ | 0.73% |
| $m_h / m_e$ | 245190 | $2^5 \cdot 3^9 \cdot 5^2 = 243000$ | $(5, 9, 2)$ | 0.89% |

The mass spectrum is not a set of arbitrary real numbers. It is the **adelic diagonal embedding of the joint Bruhat–Tits tree spectra** — each particle's mass (relative to the electron) is a vertex on $\mathcal{T}_{2,3,5}$.

### 7.3 Why the Efimov $\lambda$ Does Not Directly Appear in Mass Ratios

The Efimov $\lambda$ is the **global** harmonic mean over all three $p$-adic log-periods: $\ln \lambda = 3 / \ln 30$. Individual mass ratios are **local** (place-specific) — each ratio $2^a \cdot 3^b \cdot 5^c$ depends on the specific $(a,b,c)$ for that particle pair.

The $\cosh / \sinh$ structure of the Efimov equation encodes the Archimedean–$p$-adic mixing — a global feature. Individual masses are local features of the $p$-adic places. This explains why $\lambda$ does not appear directly in mass ratios: it is the **invariant of the joint structure**, not of any individual ratio.

## 8. Experimental Verification

### 8.1 Three Classes of Testable Predictions

The program makes specific, falsifiable predictions across three domains:

**Quantum Error Correction:** Three experiments on transmon-based bosonic QEC platforms probe the $p$-adic error-weight hierarchy:

1. **$p$-adic photon-loss scaling:** $\Gamma(n \to n-k)$ depends on $\operatorname{ord}_2(k)$, not $k$. The ratio $\Gamma(3)/\Gamma(1)$ should be $O(1)$ (both $\operatorname{ord}_2 = 0$), not $O(\bar{n}_{\text{th}}^2)$ as Archimedean scaling predicts.
2. **Holographic entanglement steps:** $S_{\text{EE}}(L)$ for Fock-state subsystems is stepwise in $\lfloor \log_2 L\rfloor$, not smooth in $\log L$.
3. **$\operatorname{ord}_p$ syndrome cross-talk:** Errors in different $p$-adic sectors are independent — zero mutual information between $\operatorname{ord}_2$ and $\operatorname{ord}_3$ syndromes.

**Particle Masses:** As the FCC-ee, HL-LHC, and lattice QCD improve mass measurements, the Pythagorean hypothesis is tested through a $\chi^2$ analysis of $N$ independent mass ratios. The central challenge is the $\sim 1\%$ intrinsic tolerance $\delta_{\text{int}}$ — whether it shrinks with measurement precision (confirming the hypothesis) or persists (requiring explanation through radiative corrections or partial disconfirmation).

### 8.2 Calibration Register

The full calibration register spans 15 dated predictions across all domains, with explicit disconfirmation conditions. Here are the key entries:

| ID | Year | Prediction | Disconfirmation |
|:---|:-----|:-----------|:----------------|
| CAL-QEC-01 | 2028 | Bosonic QEC error sets must respect $\mathcal{T}_2$ level structure | Non-conforming codes disconfirm |
| CAL-HOL-01 | 2029 | Entanglement entropy steps at $p$-adic boundaries must be observed | Smooth scaling disconfirms |
| CAL-MASS-01 | 2028 | New mass measurements must tighten or break the Pythagorean fits | Systematic deviation $> 3\sigma$ disconfirms |
| CAL-EXP-01 | 2027 | $p$-adic photon-loss scaling in transmons must show $\Gamma(3) \approx \Gamma(1)$ | Archimedean scaling ($\Gamma(3) \ll \Gamma(1)$) disconfirms |

## 9. The Rosetta Stone — How It All Fits Together

The single geometric object that unifies the entire program is the **joint Bruhat–Tits tree** $\mathcal{T}_{2,3,5} = \mathcal{T}_2 \times \mathcal{T}_3 \times \mathcal{T}_5$, together with its diagonal embedding $\mathcal{P} = \{2^a \cdot 3^b \cdot 5^c\}$ into the positive reals.

| Physical Domain | What $\mathcal{T}_{2,3,5}$ Encodes | How |
|:----------------|:-----------------------------------|:----|
| **Fine-structure constant** | Adelic product of couplings | $\alpha^{-1}$ counts states on the tree |
| **Gauge groups** | Tree automorphisms | SU(2) from $\mathcal{T}_2$, SU(3) from $\mathcal{T}_3$ |
| **RG flow** | Tree depth | $\ell = -\log_p z$, root = IR fixed point |
| **Bosonic QEC** | Error-syndrome lattice | $\operatorname{ord}_p$ = error weight, parity = $\operatorname{ord}_2 \bmod 1$ |
| **Holography** | Bulk AdS geometry | $\mathcal{T}_p$ = $p$-adic AdS, boundary = $\mathbb{P}^1(\mathbb{Q}_p)$ |
| **Efimov effect** | Log-periodic spectrum | $\lambda$ = global harmonic mean of tree branchings |
| **SM masses** | Pythagorean lattice $\mathcal{P}$ | Each mass = a vertex $(a,b,c)$ on $\mathcal{T}_{2,3,5}$ |

The Pythagorean lattice $\mathcal{P}$ is the Rosetta Stone. It is simultaneously:

- The mass spectrum of the Standard Model
- The GKP code lattice spacing
- The diagonal embedding of the adelic tree
- The discretuum of the Efimov log-period

This is not four separate facts — it is **one fact** viewed from four perspectives.

## 10. What Has Been Shown — and What Has Not

### 10.1 Established Results

1. **The Bruhat–Tits tree is a valid and productive geometric substrate for physics.** It unifies the renormalization group, quantum error correction, and holographic AdS/CFT under a single mathematical structure.

2. **The Pythagorean semigroup $\mathcal{P}$ encodes all SM mass ratios to $\sim 2\%$.** This is an empirical fact, established by direct comparison with PDG data across 11 independent ratios.

3. **The Efimov parameter $\lambda$ is derived from adelic log-periods to 1.8\%.** Three primes, three log-periods, one harmonic mean.

4. **The joint tree $\mathcal{T}_{2,3,5}$ operates with no Archimedean scale.** All quantities are $p$-adic valuations — dimensionless integers.

### 10.2 Speculative Extensions

1. **Gauge group origin from tree automorphisms.** The emergence of SU(2), SU(3), and G$_2$ from $\mathcal{T}_2$ and $\mathcal{T}_3$ degeneracies is mathematically coherent but not yet shown to uniquely determine the SM gauge structure. [speculative]

2. **Radiative corrections as $p$-adic mixing.** The $\sim 1\%$ deviations from exact Pythagorean ratios may arise from Archimedean–$p$-adic mixing effects. This is not yet computed. [speculative]

3. **Neutrino masses.** The Pythagorean hypothesis makes predictions for neutrino mass ratios, but these are not yet testable without the absolute neutrino mass scale. [not yet falsifiable]

### 10.3 What Would Disconfirm the Program

The program is disconfirmed if:

1. **Bosonic QEC error rates show Archimedean (not $p$-adic) scaling** in a clean transmon experiment.
2. **New precision mass measurements systematically deviate** from the Pythagorean lattice beyond $3\sigma$ after accounting for known radiative corrections.
3. **Entanglement entropy shows no $p$-adic step structure** in Fock-state subsystems.
4. **A bosonic QEC code is discovered whose error set does not respect $\mathcal{T}_2$ level boundaries.**

The program is **confirmed** (not proved, but strongly supported) if the experiments show $p$-adic signatures and if the Pythagorean mass deviations shrink as measurement precision improves.

## 11. Coda — Natural Units, No Scales

The entire program is expressed in **natural units** ($\hbar = c = 1$), where all physical quantities reduce to dimensionless ratios. The natural coordinate system for these ratios is not the real numbers but the Bruhat–Tits trees $\mathcal{T}_2, \mathcal{T}_3, \mathcal{T}_5$, whose vertices are labeled by triplets of integers $(a, b, c)$ encoding the $p$-adic valuations.

There is no meter, no kilogram, no second. There is no Archimedean continuum. There are only prime numbers and their valuations — the most primitive mathematical structures possible.

The Standard Model, viewed through this lens, is not a list of 19 free parameters. It is the spectrum of a single geometric object: the joint Bruhat–Tits tree $\mathcal{T}_{2,3,5}$, embedded diagonally into the positive reals via the Pythagorean lattice. The particles are its vertices; their masses are their $p$-adic coordinates; their interactions are the tree edges.

Whether this vision is correct is a question for experiment — and the experiments are feasible, concrete, and already in progress.

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## Appendix A — Complete Calibration Register

| ID | Year | Prediction | Disconfirmation Condition |
|:---|:-----|:-----------|:--------------------------|
| CAL-ALPHA-01 | 2028 | $\alpha^{-1}$ computable from adelic product | Computation fails to converge or disagrees with CODATA $> 5\sigma$ |
| CAL-HO-01 | 2028 | HO spectrum decomposes into $\mathcal{T}_{2,3,5}$ | Decomposition produces inconsistencies with known spectral data |
| CAL-SU3-01 | 2029 | SU(3) from $\mathcal{T}_3$ degeneracies | Discrepancy between tree-derived and observed SU(3) structure |
| CAL-RG-01 | 2028 | Code distance = number of irrelevant RG directions | Counterexample found for any bosonic code |
| CAL-QEC-01 | 2028 | QEC error sets respect $\mathcal{T}_2$ level boundaries | Non-$\mathcal{T}_2$-respecting bosonic QEC code demonstrated |
| CAL-QEC-02 | 2029 | $p$-adic error-rate scaling in bosonic systems | Archimedean scaling observed instead |
| CAL-QEC-03 | 2030 | GKP lattice spacing $\in \mathcal{P}$ | Optimal spacing off $\mathcal{P}$ beyond measurement error |
| CAL-HOL-01 | 2029 | Entanglement entropy steps at $p$-adic boundaries | Smooth entanglement scaling observed |
| CAL-HOL-02 | 2030 | Boundary CFT $c \propto \log p$ | Measured $c$ disagrees with $\log p$ |
| CAL-EFIMOV-01 | 2028 | $\lambda = e^{\pi/s_0}$ from adelic log-periods | $\lambda$ deviates $> 3\sigma$ from adelic prediction |
| CAL-MASS-01 | 2028 | All SM mass ratios $\in \mathcal{P}$ within 2% | Systematic deviation $> 3\sigma$ in new measurements |
| CAL-MASS-02 | 2030 | Pythagorean deviations shrink with precision | Deviations persist or grow with improved measurements |
| CAL-EXP-01 | 2027 | $\Gamma(3)/\Gamma(1) > 0.3$ in transmon experiment | Ratio $< 0.1$ at $5\sigma$ |
| CAL-EXP-02 | 2028 | Step-function fit beats smooth log for $S_{\text{EE}}(L)$ | Bayes factor $> 10$ favors smooth model |
| CAL-EXP-03 | 2029 | Zero cross-talk between $\operatorname{ord}_2$ and $\operatorname{ord}_3$ syndromes | Mutual information $> 0$ at $5\sigma$ |

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