The Resonant Theory: A Hydrodynamic Framework for the Quantum Plenum (v10)

Author: Justin Time Miller
Version: 10.0 (v10.5.1 Official Release Candidate — Linked with Supporting Papers TRT-V10-SUPP-01, TRT-V10-SUPP-02, TRT-V10-SUPP-03)
Date: October 2026

Abstract

Contemporary theoretical physics relies on non-baryonic dark-sector parameterizations—dark matter and dark energy—to reconcile macroscopic cosmological observations with the Standard Model. This paper formulates an axiomatic, publication-grade physical framework that replaces the empty inviscid vacuum with a continuous, compressible, two-fluid hydrodynamic substrate termed the Quantum Plenum, modeled on the Tisza–Landau two-fluid formalism of superfluid $^{3}\text{He}$ and $^{4}\text{He}$ [1, 2, 5]. From the electromagnetic fine-structure constant $\alpha$ and natural logarithmic attenuation $e$, we define two strictly dimensionless hydrodynamic coupling invariants: the Universal Acoustic Susceptibility $A_{\text{RT}} = \alpha^{-1}/e = 50.412727$ and its reciprocal damping ratio, the Acoustic Venting Coefficient $\beta_{\text{TRT}} = e / A_{\text{RT}} = 0.05392055$, which defines the equilibrium normal-fluid mass fraction $\chi_n \equiv \rho_{n,0}/\rho_0 = \beta_{\text{TRT}}$. Conditioning on six explicitly declared constitutive postulates (P1–P6) and discrete structural indices (Table 1), and anchoring to the local present-epoch acoustic wave speed $c_0 = 2.99792458 \times 10^8\text{ m s}^{-1}$ and empirical carrier frequency anchor $f_0 = 7.64496 \times 10^7\text{ Hz}$ ($L_0 = c_0 / f_0 = 3.92144\text{ m}$, $+0.14\%$ from heuristic binary-octave scaling $f_{\text{oct}} = 7.63454 \times 10^7\text{ Hz}$), we establish a dimensionally homogeneous system of characteristic Plenum scales (Table 2) for kinematic viscosity ($\nu_0 = c_0 L_0 / A_{\text{RT}} = 2.3320 \times 10^7\text{ m}^2\text{s}^{-1}$), angular relaxation time ($\tau_0 = (2\pi f_0)^{-1} = 2.0818 \times 10^{-9}\text{ s}$), and characteristic cavitation energy ($E_{\text{cav}} = A_{\text{RT}} h f_0 = 2.5537 \times 10^{-24}\text{ J}$).

To ensure complete methodological and claim-calibration transparency, all quantitative results are categorized up front into four distinct epistemological tiers (Table 4) and supported by three version-synchronized companion papers (TRT-V10-SUPP-01, TRT-V10-SUPP-02, TRT-V10-SUPP-03): the framework commits to one prospective, out-of-sample falsification prediction—the 2028–2030 Europa Clipper outer-cruise Doppler residual ($\bar{a}_{\text{plenum}} = (8.47 \pm 0.34) \times 10^{-10}\text{ m s}^{-2}$, falsifiable if $|\mathbf{a}_{\text{res}}| < 2.0 \times 10^{-10}\text{ m s}^{-2}$ under an exhaustive four-regime decision protocol)—while the subatomic mass ratio, apparent Hubble shift, galactic acceleration floor, and lunar recession are retrodictive consistency benchmarks conditioned on explicitly declared constitutive postulates and discrete structural integers (Table 1).

Within this calibrated framework:

1. Constitutive Topological Soliton Rest-Energy Functional (Postulate P3 & TRT-V10-SUPP-01): Under the declared topological soliton energy functional $\mathcal{H}_{\text{sol}}(p, q, D) \equiv E_e \left[ (p \cdot q)\pi^D + \Delta M_{\text{visc}}(p, \beta_{\text{TRT}}) \right]$ on the 5-torus $\mathbb{T}^5$ with boundary-layer increment $\Delta M_{\text{visc}}(p, \beta_{\text{TRT}}) \equiv \frac{p(p-1)}{\pi}\beta_{\text{TRT}}$, the unknotted electron reference state is evaluated at the $(p_e, q_e, D) = (1, 1, 0)$ ground state ($\pi^0 \equiv 1$, $p(p-1)=0 \implies \Delta M_{\text{visc}} = 0$, giving $\mathcal{H}_{\text{sol}}(1,1,0) = E_e = m_e c_0^2$), while the proton is evaluated at the minimal knotted $(p, q, D) = (2, 3, 5)$ Trefoil torus-knot state $3_1$ ($d = p \cdot q = 6$, $\pi^5 = 306.019685$, and poloidal dipole boundary drag $\Delta M_{\text{visc}} = \frac{2}{\pi}\beta_{\text{TRT}} = 0.034327$). The resulting constitutive proton-to-electron rest-energy ratio $\mu_{\text{TRT}} \equiv \mathcal{H}_{\text{sol}}(2,3,5)/\mathcal{H}_{\text{sol}}(1,1,0) = 6\pi^5 + \frac{2}{\pi}\beta_{\text{TRT}} = 1836.152436$ matches the CODATA 2022 value $1836.15267343(11)$ to $0.13\text{ ppm}$ ($|\Delta\mu| = 2.37 \times 10^{-4}$).
2. Characteristic Transonic Sonic-Horizon Mass Scale (Postulates P2, P4 & TRT-V10-SUPP-01): Under steady compressible potential flow, the governing quasi-linear PDE undergoes parabolic sonic-horizon degeneracy at local Mach number $M = 1$ ($|\mathbf{u}| = c_0$), where the core density is $\rho_{\text{sonic}} = \rho_0 e^{-1/2} = 0.60653\,\rho_0$ and the dynamic pressure drop is $\Delta P_{\text{sonic}} = (1 - e^{-1/2})P_0 = 0.39347\,P_0$, motivating the declared characteristic cavitation energy scale $E_{\text{cav}} = A_{\text{RT}} h f_0$ and mass scale $\mu_0 = E_{\text{cav}} / c_0^2 = 2.8414 \times 10^{-41}\text{ kg}$.
3. Zero-Mean Solenoidal Regularized 3D Vorticity PDE (Theorem 1 & TRT-V10-SUPP-01): Introducing the zero-mean solenoidal Leray–Helmholtz projected cubic venting term $-\beta_{\text{TRT}}\tau_0 \mathbb{P}_0(|\boldsymbol{\omega}|^2\boldsymbol{\omega})$ into the 3D vorticity equation preserves $\nabla \cdot \boldsymbol{\omega} = 0$ and the zero spatial mean $\int_{\mathbb{T}^3}\boldsymbol{\omega}\,d^3x = \mathbf{0}$ identically, establishing a conditional a priori finite-horizon $L^2$ enstrophy bound on $\mathbb{R}^3$ and a time-uniform absorbing ball on $\mathbb{T}^3$ for smooth solutions (Theorem 1).
4. Horizon Quarter-Wave Attenuation & Apparent Hubble Shift (Postulate P5 & TRT-V10-SUPP-03): Formulating photon propagation along a forward line-of-sight ray $s \in [0, d_L]$ in the 1D quarter-wave causal horizon resonator ($k_1 R_H = \pi/2$) under the declared scale-invariant macroscopic waveguide closure $\gamma_{\text{cav}} = k_1 \beta_{\text{TRT}} = \frac{\pi}{2 R_H}\beta_{\text{TRT}}$ (Postulate P5) evaluates a $+8.47\%$ enhancement of the local low-redshift Hubble slope ($H_{\text{late, TRT}} = H_{\text{early}}(1 + \frac{\pi}{2}\beta_{\text{TRT}}) = 73.11\text{ km s}^{-1}\text{Mpc}^{-1}$ from $H_{\text{early}} = 67.40\text{ km s}^{-1}\text{Mpc}^{-1}$) and BAO harmonic scale $\lambda_{\text{BAO}} = 152.27\text{ Mpc}$ (exact exponential midpoint) / $152.53\text{ Mpc}$ (leading-order geometric mean).
5. Linearized Hydrostatic Gravity & Positive Soliton Mass (Postulate P6 & TRT-V10-SUPP-02): A linearized Poisson pressure-depletion law $\nabla^2 P = 4\pi G\rho_0\rho_M$ reproduces Newton's inverse-square gravity $\mathbf{g} = -\frac{1}{\rho_0}\nabla P = -\frac{GM}{r^2}\hat{\mathbf{r}}$ with outward-increasing pressure gradient $\frac{dP}{dr} = +\frac{\rho_0 GM}{r^2} > 0$ acting on strictly positive soliton circulation energy $\mathcal{H}_{\text{sol}} = m_i c_0^2 = \int_{\mathcal{V}_{\text{sol}}} h_{\text{sol}}(\mathbf{x})\,d^3x > 0$.
6. Emergent Galactic Acceleration Threshold & Finite-Cavity Boundary Closure (Postulate P6 & TRT-V10-SUPP-02): Scaling the cosmological acoustic floor $a_0 \equiv c_0 H_{\text{early}}\beta_{\text{TRT}} = 3.531 \times 10^{-11}\text{ m s}^{-2}$ by the circular disc projection factor $\mathcal{C}_{\text{disc}} = \pi$ evaluates the galactic threshold $a_{\text{gal}} \equiv \pi a_0 = 1.109 \times 10^{-10}\text{ m s}^{-2}$ (within $7.6\%$ of Milgrom's empirical scale), recovering flat rotation curves $v_c = (G M_{\text{baryon}} a_{\text{gal}})^{1/4}$ on a bounded causal cavity $r \le R_{\text{cav}}$ with $P(R_{\text{cav}}) = P_0$ (evaluated across 20 SPARC benchmark galaxies in TRT-V10-SUPP-02).
7. Exhaustive Decision Protocol & Epistemological Ledger (TRT-V10-SUPP-03): Table 4 compiles the master ledger of retrodictive benchmarks (including lunar recession $\dot{r}_{\text{net}} = 3.815 \pm 0.001\text{ cm yr}^{-1}$) and formalizes the 100% mathematically exhaustive four-regime decision protocol for the prospective 2028–2030 Europa Clipper Doppler test ($\bar{a}_{\text{plenum}} = (8.47 \pm 0.34) \times 10^{-10}\text{ m s}^{-2}$).

1. Introduction & Literature Positioning

1.1 Physical Picture (Layman & Mechanical Intuition): Space as a Pressurized Superfluid Ocean

To grasp the core physical intuition of The Resonant Theory (TRT) before entering its formal differential equations, picture the universe not as an empty geometric stage, but as a giant, pressurized ocean of superfluid (the Quantum Plenum), where light travels as a high-speed sound wave ($c_0$) and matter (electrons, protons, atomic nuclei) is built out of stable, self-sustaining whirlpools (vortex solitons) spun up in that fluid. In standard cosmology and quantum theory, empty space is treated as a frictionless void; when galaxies rotate faster than visible stars allow, or when distant supernovae appear dimmer than early-universe expansion predicts, invisible "dark matter" particles and repulsive "dark energy" fields must be added to balance the equations. TRT investigates a concrete mechanical alternative modeled on laboratory superfluid helium ($^{3}\text{He}$ and $^{4}\text{He}$): at equilibrium, $94.61\%$ of this cosmic ocean acts as a frictionless superfluid condensate ($\rho_{s,0} / \rho_0 = 1 - \beta_{\text{TRT}}$) that transmits waves without shear resistance, while the remaining $5.39\%$ ($\chi_n = \rho_{n,0}/\rho_0 = \beta_{\text{TRT}} = 0.05392055$) acts as a viscous "normal fluid" boundary skin. Every major phenomenon in this paper—from why a proton weighs $1,836$ times more than an electron to why distant light redshifts by an extra $+8.47\%$—emerges from how spinning whirlpools and traveling waves interact with that $5.39\%$ normal-fluid boundary skin.

1.2 The Cosmological Crisis, Theoretical Lineage & Linked Version-10 Supporting Papers

The persistent tension between quantum field theory and general relativity has required auxiliary dark-sector parameterizations across cosmological scales. Late-time cosmic acceleration and the $5\sigma$ Hubble tension between early-universe Cosmic Microwave Background (CMB) inferences ($H_{\text{early}} = 67.40 \pm 0.50\text{ km s}^{-1}\text{Mpc}^{-1}$ [8]) and local Type Ia supernova distance-ladder measurements ($H_{\text{late}} = 73.04 \pm 1.04\text{ km s}^{-1}\text{Mpc}^{-1}$ [9]) are conventionally attributed to dark energy ($\Lambda$), while flat galactic rotation curves [7] and outer heliospheric angular-momentum residuals are attributed to cold dark matter halos.

Rather than introducing new particle species, The Resonant Theory (TRT v10.0) investigates whether these anomalies can be organized within a single constitutive hypothesis: that the physical vacuum acts as a compressible, two-fluid electro-hydrodynamic substrate. This inquiry synthesizes three established physics lineages while linking directly to three specialized Version-10 Supporting Papers:

1. Superfluid Vacuum & Analogue Gravity Theories: Following Tisza (1938) [1] and Landau (1941) [2], Volovik (2003) [5] showed that quasiparticles in superfluid $^{3}\text{He-A}$ reproduce emergent Lorentz invariance, gauge fields, and effective acoustic metrics [4]. However, standard superfluid-vacuum models treat the vacuum ground state as strictly inviscid ($\nu = 0$) below the Landau critical velocity, providing no quantitative mechanism for secular orbital drag or cosmological redshift attenuation.
2. Topological Soliton Models of Baryons (TRT-V10-SUPP-01): Following Kelvin's vortex-atom hypothesis and Skyrme's (1961) nonlinear meson theory [3], Faddeev and Niemi (1997) [6] demonstrated that knotted toroidal vortex solitons—specifically the $(2,3)$ Trefoil knot $3_1$—emerge as stable energy minima in three-dimensional field theories. Supporting Paper I (TRT-V10-SUPP-01) details the $\mathbb{T}^5$ torus-knot quantization, the Yukawa-screened secondary Bjerknes nuclear potential, the Tammes $N=13$ radian collapse proof, and the 3D Navier–Stokes Sobolev regularity analysis.
3. Hydrostatic Condensation Gravity & SPARC Rotation Curve Benchmarks (TRT-V10-SUPP-02): Section 7 derives the background acoustic acceleration floor $a_0 \equiv c_0 H_{\text{early}}\beta_{\text{TRT}} = 3.531 \times 10^{-11}\text{ m s}^{-2}$ and effective galactic disc boundary threshold $a_{\text{gal}} \equiv \pi a_0 = 1.109 \times 10^{-10}\text{ m s}^{-2}$ underlying flat rotation curves. Supporting Paper II (TRT-V10-SUPP-02, "Paper 2") supplies the full positive-mass soliton buoyancy proof, the finite-cavity non-linear pressure PDE derivation, and quantitative rotation-curve benchmark fits across 20 representative galaxies from the SPARC database [7].
4. Prospective Europa Clipper Falsification & Heliospheric Waveguide Protocol (TRT-V10-SUPP-03): Section 2 declares all six foundational postulates (P1–P6) in Table 1, and Section 8 classifies every quantitative claim in Table 4. Supporting Paper III (TRT-V10-SUPP-03) provides the mission-analysis-level Deep Space Network (DSN) X/Ka-band Doppler covariance separation protocol for the 2028–2030 Europa Clipper test, the transverse-vs-radial CMB acoustic peak proof, and the calibrated solar-lunar harmonic derivations.

2. Foundational Postulates, Two-Fluid Constitutive Equations & Closure Relations for $\beta_{\text{TRT}}$

Physical Picture (Layman & Mechanical Intuition): Why does a single dimensionless number, $\beta_{\text{TRT}} = 0.05392055$ ($5.392\%$), show up in the boundary skin of a proton, the blow-off valve of a 3D fluid whirlpool, and the energy loss of light crossing the universe? In a two-fluid ocean where $94.608\%$ of the fluid is frictionless superfluid and $5.392\%$ is viscous normal fluid, that $5.392\%$ normal-fluid fraction does three natural mechanical jobs: (1) when a wave oscillates at the fluid's natural relaxation rhythm ($\omega_0\tau_0 = 1$), $5.392\%$ of its energy is damped per unit radian of phase; (2) when a cylindrical whirlpool spins up, centrifugal force pushes that $5.392\%$ normal fluid outward into a thin "fuzzy jacket" (boundary sheath) around the core of thickness $\delta^*/R \approx \frac{1}{2}\beta_{\text{TRT}} = 2.696\%$; and (3) when a 3D whirlpool spins violently, friction against that $5.392\%$ normal fluid acts as a cubic pressure-relief valve that sheds excess spin into sound waves. Proposition 1 formalizes these three roles while maintaining strict SI dimensional homogeneity everywhere.

2.1 State Variables and Tisza–Landau Two-Fluid Decomposition

Postulate P1 (Two-Fluid Quantum Plenum): Physical space is occupied by a continuous, compressible two-fluid substrate described at every spacetime point $(\mathbf{x}, t)$ by the Tisza–Landau mass and momentum decomposition [1, 2]: \begin{equation} \rho(\mathbf{x}, t) = \rho_s(\mathbf{x}, t) + \rho_n(\mathbf{x}, t), \qquad \mathbf{j}(\mathbf{x}, t) = \rho_s \mathbf{u}_s + \rho_n \mathbf{u}_n \tag{1} \end{equation} where:

• $\rho_s$ $[\text{kg m}^{-3}]$ and $\mathbf{u}_s$ $[\text{m s}^{-1}]$ denote the density and velocity field of the superfluid condensate component, which is irrotational outside quantized vortex cores ($\nabla \times \mathbf{u}_s = 0$) and has zero intrinsic shear viscosity ($\eta_s = 0$);
• $\rho_n$ $[\text{kg m}^{-3}]$ and $\mathbf{u}_n$ $[\text{m s}^{-1}]$ denote the density and velocity field of the normal viscous component, which carries thermal/acoustic excitations and dynamic shear viscosity $\eta_n = \rho_n \nu_0$.

At the present cosmological epoch ($t = t_0$, redshift $z = 0$), the undisturbed background Plenum has uniform total density $\rho_0 = \rho_{s,0} + \rho_{n,0}$, equilibrium normal-fluid mass fraction $\chi_n \equiv \rho_{n,0} / \rho_0 = \beta_{\text{TRT}} = 0.05392055$, and barotropic equation of state $P(\rho) = c_0^2 \rho$. Linearizing the mass continuity equation $\partial_t \rho + \nabla \cdot (\rho \mathbf{u}) = 0$ and Euler momentum equation $\rho \partial_t \mathbf{u} = -\nabla P$ around $\rho_0$ yields the wave equation $\partial_t^2 \delta\rho - c_0^2 \nabla^2 \delta\rho = 0$, where the present-epoch local longitudinal acoustic wave speed is the invariant vacuum speed of light: \begin{equation} c_0 = \sqrt{\left.\frac{\partial P}{\partial \rho}\right|_{\rho_0}} = 2.99792458 \times 10^8\text{ m s}^{-1} \quad [\text{L T}^{-1}] \tag{2} \end{equation}

Operational Distinction Between Present-Epoch Local $c_0$ and Cosmological Lookback Attenuation: Throughout this framework, $c_0$ is a fixed, invariant local constant at the present epoch ($z = 0$) used in all atomic, laboratory, and solar-system equations (preserving the constancy of $\alpha$ in Section 3.1). Over cosmological lookback paths ($z > 0$), normal-fluid boundary-layer damping along the line of sight attenuates propagating photon frequency $\omega(s)$ without altering local present-day $c_0$, as formulated under Postulate P5 in Section 5.1.

2.2 Proposition 1: Constitutive Closure Relations Unifying the Operational Roles of $\beta_{\text{TRT}}$

In TRT, the dimensionless constant $\beta_{\text{TRT}} = 0.05392055$ is defined fundamentally as a single physical state ratio: the equilibrium normal-fluid mass fraction of the Plenum, \begin{equation} \chi_n \equiv \frac{\rho_{n,0}}{\rho_0} \equiv \beta_{\text{TRT}} = 0.05392055 \quad [\text{dimensionless: } 1] \tag{3} \end{equation} To prevent any dimensional ambiguity when $\beta_{\text{TRT}}$ appears in angular phase derivatives or cycle phase sums, we adopt the BIPM SI coherent derived unit definition of plane angle ($1\text{ rad} \equiv 1\text{ m}\,\text{m}^{-1} = 1$) and explicitly introduce the unit radian normalizer $\phi_0 \equiv 1\text{ rad} = 1$ so that normalized phase increments $d\tilde{\phi} \equiv d\phi / \phi_0$ are strictly dimensionless pure numbers everywhere.

Proposition 1 (Two-Fluid Constitutive Closures): Under the standard two-fluid closure hypotheses of (i) unit relaxation quality factor $Q_n(\omega_0\tau_0 = 1) = 1$ at the angular relaxation resonance $\tau_0 \equiv \omega_0^{-1}$, (ii) centrifugal phase expulsion of the normal fluid into a peripheral annular vortex sheath, and (iii) Hall–Vinen cubic mutual friction at high strain rates $\tau_0|\boldsymbol{\omega}| \gtrsim 1$, the equilibrium normal-fluid fraction $\chi_n = \beta_{\text{TRT}}$ in Eq. (3) determines three secondary transport coefficients:

1. Microscopic Carrier-Resonance Energy & Single-Quantum Frequency Attenuation Rate ($\Gamma_{\text{rad}} = \beta_{\text{TRT}}$): Consider a longitudinal carrier mode $\mathbf{u}(\phi) = \mathbf{u}_0 e^{i\phi}$ ($\phi = k r - \omega t$) coupled to the Plenum's angular relaxation resonance $\omega_0\tau_0 = 1$. In the two-fluid mixture (1), the superfluid fraction $\rho_{s,0}/\rho_0 = 1 - \chi_n$ oscillates without viscous loss, whereas the normal-fluid fraction $\chi_n = \rho_{n,0}/\rho_0$ undergoes Debye/Stokes–Kirchhoff relaxation damping with unit loss tangent $Q_n^{-1}(\omega_0\tau_0=1) = 1$. Thus the fraction of classical wave energy $E = \frac{1}{2}\rho_0 |\mathbf{u}|^2$ dissipated per unit normalized phase advance ($d\tilde{\phi} \equiv d\phi/\phi_0 = 1$) is: $\frac{\phi_0}{E}\frac{dE}{d\phi} = -\frac{\rho_{n,0}}{\rho_0} Q_n^{-1}\big|_{\omega_0\tau_0=1} = -\chi_n = -\beta_{\text{TRT}} \quad [\text{dimensionless: } 1]$ For a single coherent wave packet of energy $E_\gamma = \hbar\omega$ propagating along a forward number-conserving ray ($N_\gamma = 1$, $\hbar = \text{const}$), adiabatic action transfer satisfies $\frac{dE_\gamma}{E_\gamma} = \frac{d\omega}{\omega}$, yielding the dimensionless per-radian attenuation law at the carrier relaxation resonance: $\frac{\phi_0}{\omega}\frac{d\omega}{d\phi} = \frac{\phi_0}{E_\gamma}\frac{dE_\gamma}{d\phi} = -\beta_{\text{TRT}} \quad [\text{dimensionless per unit radian } \phi_0 \equiv 1\text{ rad}]$ (Scope Distinction: Proposition 1(1) governs microscopic damping at the carrier relaxation resonance $\omega_0\tau_0 = 1$. For optical photons with $\omega \gg \omega_0$ traversing the macroscopic causal horizon cavity $R_H = c_0/H_{\text{early}}$, Postulate P5 independently postulates the scale-invariant macroscopic waveguide closure $\gamma_{\text{cav}} \equiv k_1\beta_{\text{TRT}} = \frac{\pi}{2 R_H}\beta_{\text{TRT}}$ with respect to the horizon standing-wave eigenphase $d\theta_{\text{cav}}/\phi_0 = k_1 ds$, as formulated in Section 5.1.)
2. Annular Vortex Boundary-Layer Thickness Ratio ($\delta^*/R$ — Exact vs. Leading-Order Linearization): In a cylindrical or toroidal vortex tube of outer cross-sectional radius $R$, centrifugal pressure expels the normal-fluid fraction $\chi_n = \beta_{\text{TRT}}$ into a peripheral annular shear sheath of radial thickness $\delta^*$ surrounding the inviscid superfluid core of radius $R - \delta^*$. Equating the annular cross-sectional area fraction $A_{\text{sheath}}/A_{\text{total}}$ to $\chi_n = \beta_{\text{TRT}}$ yields the quadratic equation: $\frac{A_{\text{sheath}}}{A_{\text{total}}} = \frac{\pi R^2 - \pi (R - \delta^*)^2}{\pi R^2} = 2\left(\frac{\delta^*}{R}\right) - \left(\frac{\delta^*}{R}\right)^2 = \chi_n = \beta_{\text{TRT}}$ Solving this quadratic exactly and comparing with its leading-order thin-sheath linearization ($\delta^*/R \ll 1$) gives: $\left(\frac{\delta^*}{R}\right)_{\text{exact}} = 1 - \sqrt{1 - \beta_{\text{TRT}}} = 0.0273339, \qquad \left(\frac{\delta^*}{R}\right)_{\text{lin}} = \frac{1}{2}\beta_{\text{TRT}} = 0.0269603$ The quadratic truncation residual is $\left(\frac{\delta^*}{R}\right)_{\text{exact}} - \frac{1}{2}\beta_{\text{TRT}} = 3.74 \times 10^{-4}$ ($\mathcal{O}(\beta_{\text{TRT}}^2)$), confirming that the linear thin-sheath closure $\delta^*/R \approx \frac{1}{2}\beta_{\text{TRT}}$ is accurate to $1.37\%$ relative ($0.037\%$ absolute).
3. Cubic Vorticity Mutual-Friction Coefficient ($\beta_{\text{TRT}}\tau_0$): Under the Hall–Vinen mutual-friction closure for a two-fluid vortex core of vorticity $\boldsymbol{\omega}$ $[\text{s}^{-1}]$, coupling between the normal-fluid fraction $\chi_n = \beta_{\text{TRT}}$ and quantized vortex lines transfers rotational energy into longitudinal Kelvin/acoustic modes at a nonlinear rate proportional to $\chi_n \tau_0^{-1} (\tau_0|\boldsymbol{\omega}|)^2 \boldsymbol{\omega} = \beta_{\text{TRT}}\tau_0 |\boldsymbol{\omega}|^2\boldsymbol{\omega}$ $[\text{s}^{-2}]$. Applying the zero-mean solenoidal Leray–Helmholtz projector $\mathbb{P}_0$ yields the curl-compatible damping term $-\beta_{\text{TRT}}\tau_0 \mathbb{P}_0(|\boldsymbol{\omega}|^2\boldsymbol{\omega})$ analyzed in Section 6.1. $\blacksquare$

2.3 Summary of Declared Constitutive Postulates & Discrete Structural Indices

To ensure complete methodological transparency and avoid conflating continuous parameter fitting with discrete topological/harmonic indexing, Table 1 lists all six foundational postulates and discrete structural indices used in this framework.

Table 1: Declared Constitutive Postulates and Discrete Structural Indices of the TRT Framework (v10.0)

3. Dimensionless Coupling Constants & Characteristic Plenum Scales

Physical Picture (Layman & Mechanical Intuition): In mechanical engineering, pure numbers without units (like the Mach number or Reynolds number) tell you how a fluid behaves at any size, while physical rulers (meters, seconds, kilograms) set the actual size of the machine. In TRT, the electromagnetic fine-structure constant $\alpha^{-1} \approx 137.036$ measures how many wave oscillations the Plenum can sustain before damping by one natural logarithmic factor $e \approx 2.718$, giving the dimensionless Acoustic Susceptibility $A_{\text{RT}} = \alpha^{-1}/e = 50.412727$ and its reciprocal normal-fluid fraction $\beta_{\text{TRT}} = e/A_{\text{RT}} = 0.05392055$. Once we pin down one single macroscopic carrier frequency anchor $f_0 = 76.4496\text{ MHz}$ (a standing wave of length $L_0 = 3.92144\text{ meters}$), every physical property of the vacuum—its wave period $T_0$, its relaxation time $\tau_0$, its kinematic viscosity $\nu_0$, and its characteristic sonic-horizon cavitation energy $E_{\text{cav}}$—locks into place with exact SI units.

We maintain a strict separation between dimensionless coupling ratios (Section 3.1) and dimensional physical scales carrying SI units of length $[\text{L}]$, time $[\text{T}]$, mass $[\text{M}]$, and kinematic viscosity $[\text{L}^2\text{T}^{-1}]$ (Section 3.2).

3.1 The Two Strictly Dimensionless Coupling Invariants ($A_{\text{RT}}$ and $\beta_{\text{TRT}}$)

Using the CODATA 2022 inverse fine-structure constant $\alpha^{-1} = 4\pi \varepsilon_0 \hbar c_0 / e_c^2 = 137.035999177$ and Euler's number $e = 2.71828182846$, Postulate P2 defines the Universal Acoustic Susceptibility ($A_{\text{RT}}$) as the dimensionless ratio of electromagnetic coupling capacity to single-neper logarithmic attenuation: \begin{equation} A_{\text{RT}} \equiv \frac{\alpha^{-1}}{e} = \frac{137.035999177}{2.71828182846} = 50.412727 \quad [\text{dimensionless: } 1] \tag{4} \end{equation} Its reciprocal damped ratio defines the Acoustic Venting Coefficient ($\beta_{\text{TRT}}$): \begin{equation} \beta_{\text{TRT}} \equiv \frac{e}{A_{\text{RT}}} = \frac{e^2}{\alpha^{-1}} = 0.05392055 \quad [\text{dimensionless: } 1] \tag{5} \end{equation} Both $A_{\text{RT}}$ and $\beta_{\text{TRT}}$ are strictly dimensionless pure numbers everywhere in this work ($[\text{SI}] = 1$). Whenever angular phases in radians or degrees are combined with $\beta_{\text{TRT}}$ or $A_{\text{RT}}$, they are explicitly normalized by the coherent SI dimensionless unit radian $\phi_0 \equiv 1\text{ rad} = 1\text{ m m}^{-1} = 1$ (e.g., $\Delta\phi_{\text{cyc}}/\phi_0 = 2\pi$) or the unit degree $\Phi_0 \equiv 1^\circ = \frac{\pi}{180}\text{ rad}$ so that every sum and ratio is dimensionally homogeneous.

3.2 Characteristic Dimensional Scales of the Plenum

Heuristic binary-octave scaling down from the cyclic Planck frequency $f_P \equiv \frac{\omega_P}{2\pi} = \frac{1}{2\pi}\sqrt{\frac{c_0^5}{\hbar G}} = 2.95209 \times 10^{42}\text{ Hz}$ across $N_0 = 114.85$ octaves plus the hexagonal close-packed ($\theta_{\text{HCP}} = \pi/6 = 30^\circ$) normal-fluid mass-loading shift $\Delta N_{\text{visc}} = \beta_{\text{TRT}} \cos(\pi/6) = 0.046697\text{ octaves}$ gives the heuristic octave reference frequency $f_{\text{oct}}$: \begin{equation} f_{\text{oct}} \equiv \frac{f_P}{2^{114.85 + \beta_{\text{TRT}}\cos(\pi/6)}} = \frac{2.95209 \times 10^{42}\text{ Hz}}{2^{114.896697}} = 7.63454 \times 10^7\text{ Hz}, \qquad f_0 = 7.64496 \times 10^7\text{ Hz} \quad [\text{T}^{-1}] \tag{6} \end{equation} (where $N_0 = 114.85 = 117.5 - \log_2(2\pi)$ formulates the octave chain directly in cyclic frequency units). Evaluating the exact relative offset between the declared empirical carrier anchor $f_0 = 7.64496 \times 10^7\text{ Hz}$ and the heuristic octave estimate $f_{\text{oct}} = 7.63454 \times 10^7\text{ Hz}$ gives $(f_0 - f_{\text{oct}})/f_{\text{oct}} = +1.365 \times 10^{-3}$ ($+0.1365\% \approx +0.14\%$). Accordingly, $f_0 = 7.64496 \times 10^7\text{ Hz}$ is treated transparently throughout this work (Table 1, Postulate P4, and Table 4) as a declared empirical dimensional anchor, with Eq. (6) providing an order-of-magnitude Planck-to-VHF scale motivation rather than an exact first-principles identity. From $f_0 = 7.64496 \times 10^7\text{ Hz}$, $c_0 = 2.99792458 \times 10^8\text{ m s}^{-1}$, and Planck's constant $h = 6.62607015 \times 10^{-34}\text{ J s}$, the characteristic dimensional scales of the Quantum Plenum follow directly from two-fluid kinetic transport theory:

1. Fundamental Carrier Wavelength ($L_0$): The wavelength of a longitudinal carrier wave propagating at speed $c_0$ with frequency $f_0$ is: \begin{equation} L_0 \equiv \frac{c_0}{f_0} = \frac{2.99792458 \times 10^8\text{ m s}^{-1}}{7.64496 \times 10^7\text{ s}^{-1}} = 3.92144\text{ m} \quad [\text{L}] \tag{7} \end{equation}
2. Fundamental Carrier Period ($T_0$) & Characteristic Angular Relaxation Time ($\tau_0$): The single-cycle period of the carrier wave is: \begin{equation} T_0 \equiv \frac{1}{f_0} = \frac{L_0}{c_0} = 1.30805 \times 10^{-8}\text{ s} \quad [\text{T}] \tag{8} \end{equation} The characteristic angular relaxation timescale associated with carrier angular frequency $\omega_0 \equiv 2\pi f_0 = 4.80347 \times 10^8\text{ rad s}^{-1}$ is: \begin{equation} \tau_0 \equiv \frac{1}{\omega_0} = \frac{1}{2\pi f_0} = \frac{T_0}{2\pi} = 2.08183 \times 10^{-9}\text{ s} \quad [\text{T}] \tag{9} \end{equation} guaranteeing that at the carrier angular frequency, the Debye relaxation resonance condition $\omega_0 \tau_0 \equiv 1$ is satisfied identically.
3. Plenum Kinematic Viscosity ($\nu_0$): By Chapman–Enskog and Landau–Khalatnikov kinetic transport theory, a compressible fluid with sound speed $c_0$ and fundamental wave-packet mean free path $L_0$ possesses bare acoustic diffusivity $D_0 = c_0 L_0$. Dividing $D_0$ by the dimensionless acoustic susceptibility quality factor $A_{\text{RT}}$ defines the equilibrium kinematic viscosity of the Plenum: \begin{equation} \nu_0 \equiv \frac{D_0}{A_{\text{RT}}} = \frac{c_0 , L_0}{A_{\text{RT}}} = \frac{(2.99792458 \times 10^8\text{ m s}^{-1})(3.92144\text{ m})}{50.412727} = 2.33199 \times 10^7\text{ m}^2\text{ s}^{-1} \quad [\text{L}^2\text{T}^{-1}] \tag{10} \end{equation}
4. Characteristic Cavitation Energy Scale ($E_{\text{cav}}$) and Mass Scale ($\mu_0$): A single carrier phonon carries quantum energy $E_1 = h f_0$. Under Postulates P2 and P4, the coherent superposition of $A_{\text{RT}}$ carrier quanta defines the characteristic cavitation energy scale $E_{\text{cav}}$ and its Einstein–de Broglie mass scale $\mu_0 = E_{\text{cav}}/c_0^2$: \begin{equation} E_{\text{cav}} \equiv A_{\text{RT}} h f_0 = 2.55373 \times 10^{-24}\text{ J}, \qquad \mu_0 \equiv \frac{E_{\text{cav}}}{c_0^2} = \frac{A_{\text{RT}} h f_0}{c_0^2} = 2.84140 \times 10^{-41}\text{ kg} \tag{11} \end{equation}

Table 2: Characteristic Scale System of the Quantum Plenum (Exact Arithmetic Verification)

4. Topological Soliton Particles & The Universal Rest-Energy Functional

Physical Picture (Layman & Mechanical Intuition): Smoke Rings, Pretzel Knots, and Spinning Ball Bearings:

1. Why a Proton Weighs 1,836.152 Times More Than an Electron: In TRT, particles are not mystical dots; they are self-locked whirlpools in the superfluid ocean. An electron is a simple Smoke Ring ($p=1, q=1, D=0$): it is a single closed loop that never crosses over itself ($p-1 = 0$), so its tube never rubs against itself and has zero internal crossing drag. A proton is a 3D Pretzel Knot—specifically, the $(2,3)$ Trefoil torus knot ($3_1$) that winds twice through its center hole ($p=2$) and three times around its outer rim ($q=3$). Those $2 \times 3 = 6$ interwoven sheets vibrate across $D = 5$ independent half-wave directions ($\pi^5 = 306.0197$), giving $6 \times \pi^5 = 1836.118$. Plus, because the proton's tube crosses over itself twice ($p=2$), those two crossing strands rub against the $5.392\%$ normal-fluid skin, adding $\frac{2}{\pi}\beta_{\text{TRT}} = 0.034327$ of boundary drag. Put them together inside the exact same equation, and you get $1836.152436$—matching laboratory measurements to $0.13$ parts per million!
2. Why Carbon-12 Is Stable and 13 Nucleons Blow Apart: Picture 12 spinning ball bearings (6 protons, 6 neutrons) packed tightly around 1 central low-pressure pocket. Each spinning nucleon wears a thin "fuzzy jacket" of normal-fluid friction ($\delta^*/R \approx 2.7\%$) that shrinks the empty space between packed spheres from $26\%$ down to $20\%$. With 12 nucleons on the shell, the angle between neighbors is $60^\circ$—safely wider than 1 radian ($57.30^\circ$)—so their fuzzy jackets have room to spin without grinding. The moment you try to cram a 13th nucleon into that shell, the angle drops to $57.14^\circ$ (below 1 radian), causing the boundary jackets to slam into each other and shear the nucleus apart (radioactive decay).
3. Why Quantum Cavitation Breaks the Sound Barrier Instead of Tearing an Empty Hole: In a pressurized fluid, sucking a bubble all the way down to zero density ($\rho = 0$) would take infinite energy. Instead, as a whirlpool spins faster, its wall hits Mach 1 ($|\mathbf{u}| = c_0$, the speed of light/sound) while the core is still $60.65\%$ full (a $39.35\%$ pressure drop), locking the wave into a sonic horizon.

4.1 The Universal Soliton Rest-Energy Functional $\mathcal{H}_{\text{sol}}(p, q, D)$

Under Postulate P3 (Table 1; see full topological derivation in Supporting Paper TRT-V10-SUPP-01), the rest energy of a toroidal vortex soliton in the Quantum Plenum is governed by the constitutive functional parameterized by its topological winding numbers $(p, q)$ and the number $D \in \{0, 1, 2, 3, 4, 5\}$ of active internal half-wave standing-wave phase modes: \begin{equation} \mathcal{H}{\text{sol}}(p, q, D) \equiv E_e \left[ (p \cdot q) \cdot \pi^D + \Delta M{\text{visc}}(p, \beta_{\text{TRT}}) \right] \tag{12} \end{equation} where $E_e \equiv m_e c_0^2$ is the canonical rest energy of the electron reference state, and the boundary-layer viscous shear increment for the poloidal winding index $p$ is: \begin{equation} \Delta M_{\text{visc}}(p, \beta_{\text{TRT}}) \equiv \frac{p(p-1)}{\pi}\beta_{\text{TRT}} \tag{12a} \end{equation} (As detailed in TRT-V10-SUPP-01, the factor $p(p-1) = 2\binom{p}{2}$ counts the ordered pairwise poloidal strand interactions across the meridian cross-section, which vanishes identically for the unknotted $p=1$ loop and equals $2$ for the minimal knotted $p=2$ Trefoil baryon.) The physical components of Eq. (12) are:

1. Topological Covering Degree ($d_{\text{cover}} = p \cdot q$): The number of overlapping sheets formed by the closed $(p, q)$ torus knot on the 2-torus $\mathbb{T}^2 \subset \mathbb{T}^5$.
2. Phase-Space Standing-Wave Volume Factor ($\pi^D$): In an extended acoustic resonator, standing waves oscillate from node to antinode across normalized half-wave phase intervals $\Delta\vartheta_k/\phi_0 = \pi$ ($k = 1, \dots, D$). For $D$ independent resonant dimensions, the phase-space volume factor is: \begin{equation} \prod_{k=1}^D \frac{\Delta\vartheta_k}{\phi_0} = \pi^D \tag{13} \end{equation} Crucially, for $D = 0$ (an unknotted filament with zero internal cage standing-wave modes), the phase volume is identically $\pi^0 \equiv 1$.
3. Viscous Boundary-Layer Drag Increment ($\Delta M_{\text{visc}}$): The skin friction contributed by normal-fluid shear across the vortex boundary layer.

4.2 Uniform Evaluation of the Lepton Ground State and Baryon Mass Ratio

Evaluating Eq. (12) at the unknotted lepton ground state $(1,1,0)$ and the minimal knotted baryonic Trefoil state $(2,3,5)$ yields:

1. The Electron Reference State as the $(1, 1, 0)$ Lepton Ground State: The electron is modeled as the fundamental unknotted vortex loop ($0_1$) with trivial winding $(p_e, q_e) = (1, 1)$, quantized superfluid circulation $\Gamma_e = h / m_e$, zero internal standing-wave modes ($D = 0 \implies \pi^0 \equiv 1$), and zero self-crossing strands ($p=1 \implies p(p-1)=0 \implies \Delta M_{\text{visc}}(1, \beta_{\text{TRT}}) = 0$ identically): \begin{equation} \mathcal{H}_{\text{sol}}(1, 1, 0) = E_e \left[ (1 \cdot 1) \cdot \pi^0 + 0 \right] = E_e = m_e c_0^2 \tag{14} \end{equation}
2. The Proton as the Knotted $(2, 3, 5)$ Baryonic Soliton: The proton is modeled as the minimal non-trivial prime torus knot—the $(p, q) = (2, 3)$ Trefoil knot ($3_1$) [3, 6], whose covering degree is $d_{\text{cover}} = p \cdot q = 2 \times 3 = 6$ across all $D = 5$ phase dimensions of $\mathbb{T}^5$ (toroidal azimuth, poloidal twist, radial core standing-wave phase, superfluid condensate phase, and normal-fluid shear phase). Its geometric rest-energy ratio is: \begin{equation} M_{\text{geom}}(2, 3, 5) \equiv (p \cdot q) \cdot \pi^5 = 6\pi^5 = 6(306.019685) = 1836.118109 \tag{15} \end{equation}
3. Normal-Fluid Meridian Boundary-Layer Increment ($\Delta M_{\text{visc}}(2, \beta_{\text{TRT}}) = \frac{2}{\pi}\beta_{\text{TRT}}$): For the Trefoil knot ($p=2$), Eq. (12a) gives: \begin{equation} \Delta M_{\text{visc}}(2, \beta_{\text{TRT}}) \equiv \frac{2(2-1)}{\pi}\beta_{\text{TRT}} = \frac{2}{\pi}\beta_{\text{TRT}} = \frac{2}{\pi}(0.05392055) = 0.0343269 \tag{16} \end{equation} matching the meridian dipole integral $\frac{\beta_{\text{TRT}}}{\pi}\int_0^\pi \sin\theta\,d\theta = \frac{2}{\pi}\beta_{\text{TRT}}$ derived in TRT-V10-SUPP-01.

Summing the geometric and boundary-layer contributions yields the constitutive TRT mass-ratio benchmark: \begin{equation} \mu_{\text{TRT}} \equiv \frac{\mathcal{H}{\text{sol}}(2, 3, 5)}{\mathcal{H}{\text{sol}}(1, 1, 0)} = 6\pi^5 + \frac{2}{\pi}\beta_{\text{TRT}} = 1836.118109 + 0.034327 = 1836.152436 \tag{17} \end{equation} Precision Calibration vs. CODATA 2022: Comparing $\mu_{\text{TRT}} = 1836.152436$ to the CODATA 2022 experimental value $\mu_{\text{exp}} = 1836.15267343(11)$ gives an absolute residual of $|\mu_{\text{TRT}} - \mu_{\text{exp}}| = 2.37 \times 10^{-4}$, or a relative agreement of $0.13\text{ ppm}$ ($99.999987\%$). Because this $0.13\text{ ppm}$ residual exceeds the $6 \times 10^{-11}$ CODATA uncertainty and depends on the discrete index triples $(1,1,0)$ and $(2,3,5)$ declared in Postulate P3, Eq. (17) is classified in Table 4 as a Category B conditioned retrodictive benchmark.

4.3 Screened Secondary Bjerknes Nuclear Binding, Void Fraction ($\epsilon_{\text{eff}}$) & The 1-Radian ($57.2958^\circ$) Limit

In a compressible fluid of density $\rho_0$ and relaxation screening length $\lambda_{\text{screen}} \equiv c_0/\omega_0 = L_0/(2\pi) = 0.62412\text{ m}$ (or the corresponding sub-harmonic nuclear screening length at the femtometer scale), two spherical solitons pulsating in phase at angular frequency $\omega_0$ interact via the screened Helmholtz (Yukawa) potential $\mathcal{U}_{\text{Bj}}(r) = -\frac{\rho_0\langle\dot{V}_1\dot{V}_2\rangle}{4\pi r}\exp(-r/\lambda_{\text{screen}})$ (TRT-V10-SUPP-01, Eqs. S1.4–S1.6). Differentiating $\mathcal{U}_{\text{Bj}}(r)$ with respect to $r$ via the product rule yields the attractive screened secondary Bjerknes force: \begin{equation} \mathbf{F}{\text{Bj}}(r) = -\nabla\mathcal{U}{\text{Bj}}(r) = -\frac{\rho_0 \langle \dot{V}1 \dot{V}2 \rangle}{4\pi r^2}\left(1 + \frac{r}{\lambda{\text{screen}}}\right)\exp!\left(-\frac{r}{\lambda{\text{screen}}}\right)\hat{\mathbf{r}}, \qquad \lambda_{\text{screen}} \equiv \frac{c_0}{\omega_0} = \frac{L_0}{2\pi} \tag{18} \end{equation} At contact, 12 equal nucleon vortices of radius $R$ packed at coordination radius $R_{\text{coord}} = 2R$ around an unpopulated central barycenter cavitation node of radius $R$ form the Carbon-12 (12-around-1) coordination cluster (containing exactly $N = 12$ outer baryons—$6$ protons and $6$ neutrons, baryon number $A = 12$—surrounding $1$ unpopulated central standing-wave pressure node; see TRT-V10-SUPP-01, Section 4.1):

1. Effective Interstitial Void Fraction ($\epsilon_{\text{eff}}$ — Both Linearized and Exact Sheath Roots): By Kepler–Hales close-packing, bare rigid spheres of radius $R$ have maximum FCC/HCP packing density $\phi_{\text{FCC}} = \frac{\pi}{3\sqrt{2}} = 0.740480$ (bare void fraction $1 - \phi_{\text{FCC}} = 0.259520$). Including the normal-fluid boundary-layer sheath derived in Proposition 1(2) expands the effective hydrodynamic exclusion radius to $R_{\text{eff}} = R(1 + \delta^*/R)$, yielding the Effective Interstitial Void Fraction for both the leading-order linear closure ($\delta^*/R = \frac{1}{2}\beta_{\text{TRT}} = 0.026960$) and the exact quadratic root ($\delta^*/R = 1 - \sqrt{1-\beta_{\text{TRT}}} = 0.027334$): \begin{equation} \epsilon_{\text{eff}}^{\text{(lin)}} = 1 - \phi_{\text{FCC}}\left(1 + \frac{1}{2}\beta_{\text{TRT}}\right)^3 = 0.19800 \approx 0.200, \qquad \epsilon_{\text{eff}}^{\text{(exact)}} = 1 - \phi_{\text{FCC}}\left(2 - \sqrt{1 - \beta_{\text{TRT}}}\right)^3 = 0.19712 \approx 0.200 \tag{19} \end{equation} Both roots agree to within $8.8 \times 10^{-4}$ ($0.4\%$ relative), establishing an effective interstitial void fraction of $\approx 20\%$.
2. Spatial Hard-Core Chord Distance ($d_{\text{chord}}$) vs. Geodesic Surface Wave Path ($s(\theta)$): On the spherical coordination shell of radius $R_{\text{coord}} = 2R$, two geometric separation measures govern stability:
   • Spatial Hard-Core Euclidean Chord Distance ($d_{\text{chord}}$): $d_{\text{chord}}(\theta) = 2 R_{\text{coord}}\sin(\theta/2) = 4R\sin(\theta/2) \ge 2R \iff \theta \ge \pi/3 = 60.0000^\circ$.
   • Geodesic Surface Acoustic Boundary-Wave Path ($s(\theta)$ & The 1-Radian Limit): Along the coordination shell surface, the acoustic boundary-layer shear wave propagates along the geodesic arc $s(\theta) = R_{\text{coord}}\,\theta = 2R\,\theta$. By the Helmholtz–Rayleigh acoustic boundary criterion, independent pressure wells require the geodesic wave path to exceed the exclusion diameter $2R$: $s(\theta) \ge 2R \iff 2R\,\theta \ge 2R \iff \theta \ge 1\text{ radian} = \frac{180^\circ}{\pi} = 57.2958^\circ$ For $N = 12$ outer nucleons ($^{12}\text{C}$), the Tammes icosahedral maximum $\theta_{\text{Tammes}}(12) = 63.4349^\circ$ and FCC angle $60.0000^\circ$ both safely exceed $1\text{ rad}$ ($57.2958^\circ$). Forcing a $13\text{th}$ nucleon onto the coordination shell compresses the maximum angular separation to the exact Tammes limit $\theta_{\text{Tammes}}(13) = 57.1367^\circ < 1\text{ rad}$ (TRT-V10-SUPP-01, Eq. S1.8), causing adjacent boundary sheaths to overlap and triggering acoustic shear fission.

4.4 Compressible Sonic-Horizon Degeneracy & Characteristic Cavitation Mass Scale

In a barotropic compressible fluid $P(\rho) = c_0^2 \rho$ (Postulate P1) with ambient boundary conditions $u(\infty) = 0$ and $\rho(\infty) = \rho_0$, steady irrotational flow ($\mathbf{u} = \nabla\Phi$) satisfies the compressible Bernoulli invariant: \begin{equation} \frac{1}{2}|\mathbf{u}|^2 + \int_{\rho_0}^\rho \frac{dP}{\rho'} = \frac{1}{2}|\mathbf{u}|^2 + c_0^2 \ln!\left(\frac{\rho}{\rho_0}\right) = 0 \implies \rho(\mathbf{u}) = \rho_0 \exp!\left(-\frac{|\mathbf{u}|^2}{2 c_0^2}\right) \tag{20a} \end{equation} While the static isothermal bulk modulus $\kappa \equiv \rho(\partial P/\partial\rho) = \rho c_0^2 > 0$ remains strictly positive for all finite densities, substituting Eq. (20a) into the steady mass continuity equation $\nabla\cdot(\rho\nabla\Phi) = 0$ yields the quasi-linear compressible potential flow equation $\sum_{i,j}(\delta_{ij} - u_i u_j/c_0^2)\partial_i\partial_j\Phi = 0$ (TRT-V10-SUPP-01, Section 5.1). Its longitudinal characteristic eigenvalue $\lambda_\parallel = 1 - |\mathbf{u}|^2/c_0^2 = 1 - M^2$ is strictly elliptic for subsonic flow ($|\mathbf{u}| < c_0$), but vanishes identically at the Mach-1 transonic sonic horizon $|\mathbf{u}| = c_0$ ($M = 1$). At this sonic horizon, the core density and dynamic acoustic pressure depression reach the exact finite transonic values: \begin{equation} \rho_{\text{sonic}} = \rho_0 \exp!\left(-\frac{c_0^2}{2 c_0^2}\right) = \rho_0 e^{-1/2} = 0.606531 , \rho_0, \qquad \Delta P_{\text{sonic}} \equiv P_0 - P(\rho_{\text{sonic}}) = \left(1 - e^{-1/2}\right)P_0 = 0.393469 , P_0 \tag{20b} \end{equation} Thus topological phase boundaries form at the Mach-1 sonic horizon ($\Delta P_{\text{sonic}} = 0.39347\,P_0$) without requiring an unphysical zero-density vacuum singularity ($\rho \to 0$). Under Postulates P2 and P4, the characteristic cavitation energy scale $E_{\text{cav}} \equiv A_{\text{RT}} h f_0 = 2.55373 \times 10^{-24}\text{ J}$ defines the associated characteristic cavitation mass scale $\mu_0$: \begin{equation} \mu_0 \equiv \frac{E_{\text{cav}}}{c_0^2} = \frac{A_{\text{RT}} h f_0}{c_0^2} = 2.84140 \times 10^{-41}\text{ kg} \tag{20} \end{equation} For a super-threshold wave packet of energy $E_k \ge E_{\text{cav}}$, the effective mass scale is $m(E_k) = \frac{E_k}{c_0^2}\,\Theta(E_k/E_{\text{cav}} - 1) \ge \mu_0$, where $[E_k / (A_{\text{RT}} h f_0)] = \text{J}/\text{J} = 1$ and $[\mu_0] = \text{kg}$. (Epistemological Classification: In Table 4, $\mu_0$ is classified transparently as a Category A/B declared characteristic dimensional nucleation scale anchored by $f_0$ and $A_{\text{RT}}$, rather than an unproved dynamic spinodal instability theorem or a constructive quantum field theory proof for pure $SU(N)$ Yang–Mills gauge fields.)