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Conditional Uniqueness of the Amplitude-Square Form

Craig Edwin Holdway

Published May 23, 2026• 0 citations
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Abstract

T63 establishes a conditional uniqueness theorem for the interference and amplitude-square structures developed in T61 and T62. Starting from the reduced two-channel interference form,\[P_{\mathrm{tot}}=P_1+P_2+G(P_1,P_2,\Delta\Omega),\]The theorem analyzes the structural constraints imposed by symmetry, continuity, axis-vanishing behaviour, degree-1 homogeneity, and first-harmonic rotational structure generated by the reduced antisymmetric operator algebra. Under these assumptions, the interference contribution is forced into the normal form\[G(P_1,P_2,\Delta\Omega)=2\sqrt{P_1P_2}\,\sin(\Delta\Omega),\]yielding the exact amplitude-square representation\[P_{\mathrm{tot}}=\left|\sqrt{P_1}+e^{i\phi}\sqrt{P_2}\right|^2.\]The theorem therefore shows that, within the stated structural class, the Born-compatible amplitude-square form is uniquely selected by the reduced interference geometry together with the harmonic structure induced by the rotational generator satisfying \(A^2=-I\). T63 does not derive full quantum mechanics, measurement theory, Hilbert-space axioms, or probabilistic interpretation from first principles. The result is a conditional uniqueness theorem for the algebraic normal form of two-channel interference under the stated assumptions. In particular, the homogeneity assumption is essential: without it, uniqueness does not hold. The theorem further clarifies that the complex amplitude representation is obtained from the interference structure rather than independently postulated. Status: solid for the conditional uniqueness of the amplitude-square normal form under the stated symmetry, homogeneity, and harmonic assumptions; conditional on the separability and structural assumptions defining the interference class; speculative for any claim of a complete derivation of quantum probability theory or the Born rule from Q5 geometry alone.

DOI
10.5281/zenodo.20368828

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T62 establishes an exact complex amplitude-square representation for the interference structure derived in T61. Starting from the reduced interference-form expressionPtot=P1+P2+2P1P2 sin⁡(ΔΩ),P_{\mathrm{tot}}=P_1+P_2+2\sqrt{P_1P_2}\,\sin(\Delta\Omega),Ptot​=P1​+P2​+2P1​P2​​sin(ΔΩ),The theorem shows that, after a phase shift transformation, the expression can be rewritten identically in the amplitude-square formPtot=∣P1+eiϕP2∣2.P_{\mathrm{tot}}=\left|\sqrt{P_1}+e^{i\phi}\sqrt{P_2}\right|^2.Ptot​=​P1​​+eiϕP2​​​2.The result, therefore, demonstrates that once the reduced antisymmetric transport structure generates an interference-form expectation law, a complex amplitude representation follows algebraically. The theorem identifies the emergence of complex amplitude structure as a consequence of the interference geometry rather than as an independently imposed assumption. T62 does not derive the Born rule, full Hilbert-space quantum mechanics, measurement theory, or wavefunction collapse. The theorem establishes only that the reduced interference structure admits an exact complex amplitude-square representation compatible with Born-type algebraic form. The resulting complex amplitude object is an emergent representation constructed from the interference expression rather than a fully axiomatized quantum state space. Status: solid for the exact algebraic amplitude-square representation derived from the interference-form structure of T61; conditional on the matched interference subclass and reduced-sector parameter correspondence; speculative for any identification with full quantum probability theory or physical wavefunction ontology.
T61 develops an emergent interference-form representation within the reduced Q5 operator framework. Starting from the reduced expectation structure⟨Q⊥⟩ρ=a+bx+cz+μy,\langle Q_\perp\rangle_\rho=a+bx+cz+\mu y,⟨Q⊥​⟩ρ​=a+bx+cz+μy,The theorem identifies a matched subclass in which the antisymmetric rotational contribution can be rewritten into a probability-like interference expression involving effective channel weights and a relative phase term. The resulting structure takes the form of a two-channel interference law,Ptot=P1+P2+2P1P2 sin⁡(ΔΩ),P_{\mathrm{tot}}=P_1+P_2+2\sqrt{P_1P_2}\,\sin(\Delta\Omega),Ptot​=P1​+P2​+2P1​P2​​sin(ΔΩ),where the interference contribution arises from the surviving reduced antisymmetric sector generated by the rotational invariant μ\muμ. The theorem, therefore, establishes that the reduced defect-sector expectation structure naturally admits quantum-like interference representations under explicit matching conditions. T61 does not derive the Born rule, quantum measurement theory, wavefunction collapse, or universal probabilistic interpretation. The interference form is obtained through parameter matching within a restricted reduced-sector subclass rather than from structural necessity alone. The theorem further clarifies that the effective channel weights P1,P2P_1,P_2P1​,P2​ are not assumed to be physical probabilities in the full quantum-mechanical sense. Instead, T61 isolates the precise conditions under which the reduced antisymmetric transport structure reproduces a probability-like interference form. Status: solid for the reduced expectation decomposition and interference-form rewriting under the stated matching assumptions; conditional on the reduced-sector parameter correspondence and admissible reduction structure; speculative for any interpretation as a derivation of quantum probability theory or the Born rule.
T64 develops the projective-state geometry naturally induced by the interference and amplitude structures established in T61-T63. Once the reduced transport framework admits an exact complex amplitude-square representation,Ptot=∣ψ∣2,P_{\mathrm{tot}}=|\psi|^2,Ptot​=∣ψ∣2,global phase transformations of the formψ∼eiθψ\psi \sim e^{i\theta}\psiψ∼eiθψleave all amplitude-square observables invariant. The theorem therefore identifies physically equivalent amplitude states as phase-equivalence classes, producing a natural projective quotient structure on the reduced state space. Observable content depends only on the equivalence class of the amplitude representation rather than on a particular global phase representative. T64 is structurally important because it shifts the framework from interference algebra toward quotient-state geometry. The theorem shows that once interference-compatible complex amplitudes emerge, projective equivalence becomes unavoidable as a consequence of phase redundancy in the observable sector. The result does not derive the full structure of projective Hilbert-space quantum mechanics, but it establishes that the Q5 interference architecture naturally descends to a projective amplitude geometry after elimination of globally redundant phase information. Status: solid for the phase-equivalence and projective quotient structure induced by amplitude-square invariance; conditional on the amplitude representation framework established in T61-T63; speculative for any claim of complete equivalence with full quantum projective Hilbert geometry or wavefunction ontology.
T92 establishes that the squared-amplitude probability rule in the reduced Q5 crossing sector is not postulated but follows from unitarity, norm preservation, and additive refinement consistency within the reduced two-channel architecture. The theorem works in the reduced crossing sectorHPQ=C2,\mathcal{H}_{PQ} = \mathbb{C}^2,HPQ​=C2,obtained after the 5→3→25 \to 3 \to 25→3→2 reduction. The reduced transport generator is\[A = i\sigma_y=\begin{pmatrix}0 & 1 \\-1 & 0\end{pmatrix},\qquadA^\dagger = -A,\qquadA^2 = -I.\] Continuous transport is generated byU(t)=etA.U(t)=e^{tA}.U(t)=etA. The proof first establishes anti-Hermiticity:A†=−A.A^\dagger=-A.A†=−A. From this,U(t)†=etA†=e−tA=U(t)−1,U(t)^\dagger=e^{tA^\dagger}=e^{-tA}=U(t)^{-1},U(t)†=etA†=e−tA=U(t)−1,So the transport operator is unitary:U(t)†U(t)=I.U(t)^\dagger U(t)=I.U(t)†U(t)=I. Unitarity then forces norm preservation:∥U(t)ψ∥2=∥ψ∥2.\|U(t)\psi\|^2=\|\psi\|^2.∥U(t)ψ∥2=∥ψ∥2. For normalized statesψ=P∣P⟩+Q∣Q⟩,∣P∣2+∣Q∣2=1,\psi=P|P\rangle+Q|Q\rangle,\qquad|P|^2+|Q|^2=1,ψ=P∣P⟩+Q∣Q⟩,∣P∣2+∣Q∣2=1,The theorem introduces an additive refinement consistency lemma. If a channel decomposes orthogonally,∣P∣2=∣P1∣2+∣P2∣2,|P|^2=|P_1|^2+|P_2|^2,∣P∣2=∣P1​∣2+∣P2​∣2,Then the probability must satisfyPr⁡(P)=Pr⁡(P1)+Pr⁡(P2).\Pr(P)=\Pr(P_1)+\Pr(P_2).Pr(P)=Pr(P1​)+Pr(P2​). Assuming probability depends only on channel norm weight,Pr⁡(P)=f(∣P∣2),\Pr(P)=f(|P|^2),Pr(P)=f(∣P∣2),The refinement condition forces the Cauchy functional equation\[f(x+y)=f(x)+f(y),\qquadf(1)=1.\] Monotonicity and nonnegativity force continuity on [0,1][0,1][0,1], and the unique continuous additive solution isf(x)=x.f(x)=x.f(x)=x. Therefore, the unique norm-preserving probability assignment in the reduced crossing sector isPr⁡(P)=∣P∣2,Pr⁡(Q)=∣Q∣2.\Pr(P)=|P|^2,\qquad\Pr(Q)=|Q|^2.Pr(P)=∣P∣2,Pr(Q)=∣Q∣2. T92 therefore upgrades the earlier reduced-sector Born interpretation from heuristic consistency to a mathematically constrained uniqueness statement within the two-channel architecture. Corollary 92.1 establishes channel resolution into the basis states∣P⟩=(1,0)T,∣Q⟩=(0,1)T,|P\rangle=(1,0)^T,\qquad|Q\rangle=(0,1)^T,∣P⟩=(1,0)T,∣Q⟩=(0,1)T,with probabilities determined by squared amplitudes. Corollary 92.2 shows that the Born assignment is preserved under Q5 transport because∣P(t)∣2+∣Q(t)∣2=1|P(t)|^2+|Q(t)|^2=1∣P(t)∣2+∣Q(t)∣2=1for all ttt. Corollary 92.3 gives the architectural interpretation of measurement. Measurement is interpreted not as an external collapse force but as forced resolution into one admissible barrier-coupled channel. The barrier selects admissible channels, while the amplitude distribution determines the resolution probability:Pr⁡(channel C)=∣⟨C∣ψ⟩∣2.\Pr(\text{channel }C)=|\langle C|\psi\rangle|^2.Pr(channel C)=∣⟨C∣ψ⟩∣2. The theorem remains carefully bounded. It does not claim:- a derivation of the Born rule for arbitrary Hilbert spaces,- a complete solution to the quantum measurement problem,- or a derivation independent of the 5→3→25 \to 3 \to 25→3→2 reduction chain. The solid core is the reduced-sector statement:\[A^\dagger=-A\RightarrowU(t)\ \text{unitary}\Rightarrow\text{norm preservation}\Rightarrow\Pr(P)=|P|^2.\] T92 therefore provides the foundational probability justification underlying the interference law of T91 and strengthens the reduced Q5 transport interpretation by deriving the squared-amplitude rule from unitary reduced transport plus additive refinement consistency rather than taking it as a postulate.
This paper establishes that a single scalar invariant µ = ½Tr(Q⊥R) simultaneously determines phase asymmetry, rotational defect, and interference structure in the reduced Q5 transport system. The central result is that µ links phase asymmetry, rotational defect, and interference source as the unique rotational readout coefficient of the reduced operator sector. The amplitude-square observable form ∣√P1+eiφ√P2∣2 |√P₁ + e^{iφ}√P₂|² ∣√P1​+eiφ√P2​∣2emerges from the interference structure under conditional uniqueness assumptions rather than being assumed. The solid core establishes: µ∝Im(PQˉ)=∣P∣∣Q∣sin(ΔΩ) µ ∝ Im(PQ̄) = |P||Q|sin(ΔΩ) µ∝Im(PQˉ​)=∣P∣∣Q∣sin(ΔΩ) ; µ is the unique antisymmetric rotational coefficient on the transverse phase plane P⊥; channel and operator definitions of µ coincide under the common-reduction assumption; the interference term µ⟨R⟩ is the sole phase-sensitive contribution to observables; and amplitude-square structure follows from the interference form. Conditional extensions (barrier holonomy, entangling power, effective generator, and emergent time) are explicitly separated from the solid core and stated with their open derivation dependencies. The paper demonstrates that interference and amplitude structure share a single origin in µ, and that the amplitude-square form is derived rather than assumed.
We prove a conditional uniqueness theorem for projective measurements on pure states: given the L2 L^2 L2 Hilbert space structure of quantum mechanics, the Born rule P=∣ψ∣2 P = |\psi|^2 P=∣ψ∣2 is the only outcome-local probability assignment compatible with five operational postulates (outcome-locality, normalization, phase independence of the classical record, tensor product factorization, and continuity), with interference consistency used only as a post-hoc check. Physically, the theorem addresses a boundary problem: amplitudes support interference and cancellation before measurement, whereas a stabilized classical record cannot retain the full relative-phase distinction structure in accessible form. Irreversible record formation motivates this phase-insensitivity requirement, although no thermodynamic quantity enters the formal proof. Mathematically, phase independence reduces the map to a function of modulus, factorization and continuity force a power law, and consistency with L2 L^2 L2 normalization fixes the exponent to 2 2 2. Within this framework, the squared modulus is the unique classicalization map from phase-sensitive amplitudes to accessible record weights. The result is complementary in physical motivation to Gleason-type derivations but narrower in scope: it is confined to the pure-state projective setting and does not derive the general trace rule for mixed states and POVMs.