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Inversion-Comparator Residual Scattering Theorem

Craig Edwin Holdway

Published May 21, 2026• 0 citations
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Abstract

TA30 is a structural synthesis theorem unifying the post-T90 barrier machinery into a single operator interpretation. Earlier theorems established admissible Y-gate projection, complementary leakage sectors, antisymmetric transport survival, helical leakage propagation, lag-return phase bias, and residual phase redistribution as separate results. TA30 compresses these into one operative principle: the barrier acts as a coherence-selective inversion comparator rather than merely a separator. The full transport pipeline (T97) evolves the fibre state as \( ψ_out = D_Q M_Q Π_Y R D_N M_N ψ_full \), acting on states in \( H_{5×5} \). Every reduced transport state decomposes into an admissible crossing component \( Π_Y ψ_{PQ} \)and a complementary residual component \( Kψ_{PQ} \). From T88/T89, symmetric dressing contributions cancel under inversion conjugacy \( (S_n + S_d = 0) \), so only antisymmetric, order-sensitive transport structure survives barrier comparison. Residual transport propagates helically through the three-mode chain u_2 ↔ u_3 ↔ u_4 under the adjacency operator \( A_L = (1/√80)·[phase matrix] \) (T127), with no direct u_2 ↔ u_4 coupling. The middle mode acts as a mandatory balancing intermediary. Residual return (T94/T121) induces lag-phase observable correction \( δP = κsin(2θ)Δ_Y(t)cosφ \), with coupling strength \( κ = 1/√40 \) closing consistently with the derived transport normalization (T126). The residual scattering architecture is formalized through a block operator S_B = [[A, C], [D, E]], where A governs coherent carrier transport, D extracts phase-defective structure into residual fibres, C reinjerts circulated residual into coherent transport, and E governs residual redistribution and balancing circulation. The spectral radius of E classifies the dynamical regime: ρ(E) < 1 damps residual circulation, ρ(E) = 1 gives conservative circulation, ρ(E) > 1 produces rupture. The complement sector can function as a stabilizing coherence reservoir provided ρ(E) ≤ 1. The central structural result is that coherent transport is stabilized not by annihilating phase incompatibility but by exporting it into dynamically active residual-balancing fibres. The complement sector is not discarded leakage but an active balancing ecology. Explicit computation of block entries A, C, D, E from Q5 geometry is the primary remaining open computation, addressed in TA31–TA35. Physical interpretations (coherence-selective scattering, open-system phase stabilization, structured decoherence redistribution) remain conditional.

DOI
10.5281/zenodo.20332657

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Residual Scattering Operator Theorem

Craig Edwin Holdway

TA31 converts the TA30 barrier-comparator picture into an explicit operator form. The barrier is modelled as a five-channel scattering system with Hilbert space \( H_5 = span{B_L, L, M, R, B_R} \), decomposed into a three-channel coherent triadic carrier sector \( H_M = span{L, M, R} \) and a two-channel asymmetric residual-balancing sector \( H_R = span{B_L, B_R} \). The admissible Y-gate split \( ψ_{PQ} = Π_Y ψ_{PQ} + Kψ_{PQ} \) (T96/T122), together with the three-mode helical leakage chain u_2 ↔ u_3 ↔ u_4 with no direct u_2 ↔ u_4 coupling (T127), forces a (3+2)×(3+2) block scattering structure. The barrier scattering operator takes block form S_B = [[A, C], [D, E]], where A: H_M → H_M governs coherent triadic carrier transport; D: H_M → H_R extracts phase-defective structure into residual fibres; C: H_R → H_M reinjerts circulated residual as coherent reinforcement; and E: H_R → H_R governs residual redistribution and balancing circulation. Four corollaries establish: the residual extraction channel (DM_in is the extraction term); the residual reinforcement channel (CR_in is the reinjection term); the residual circulation channel (E as the operator-level complement-sector balancing); and the coherence maintenance condition, repeated coherent transport remains stable when \( ‖DM_in‖ \) and \( ‖CR_in‖ \)remain bounded and \( ρ(E) ≤ 1 \). The spectral radius condition classifies three dynamical regimes:\( ρ(E) < 1 \) damps residual mismatch, \( ρ(E) = 1 \)gives conservative circulation, and \( ρ(E) > 1 \) produces instability and possible coherence rupture. Unitarity of S_B is not asserted. Explicit computation of block entries A, C, D, E as functions of Q5 geometry (w_H, Gray, Π_Y, K, Θ, A_L) is deferred to TA35 (geometric block-forcing definitions), TA36 (forced extraction block D), TA37 (forced circulation block E), and TA38 (forced reinjection block C). TA31 provides the structural scaffold that those theorems fill in. Physical interpretation beyond the transport formalism remains conditional.

•May 21, 2026•0 citations

Residual Surface Return in the Extended Q5 Leakage Sector

Craig Edwin Holdway

T94 extends the leakage-state framework of T93 by deriving the leading-order return dynamics of phase amplitude that leaves the \(Y\)-admissible crossing sector. Rather than treating leakage as a terminal loss mechanism, the theorem models leakage as a redistribution process in which rejected amplitude enters a secondary sector, circulates internally, and subsequently returns to the observable crossing sector. The extended state space is \[\mathcal{H}_{\mathrm{ext}}=\mathbb{C}^{2}\oplus\mathcal{H}_{L},\] with dynamics governed by the coupled generator \[\mathcal{G}=\begin{pmatrix}A & -K^{\dagger} \\K & B\end{pmatrix},\] where \(K\) transfers amplitude into the leakage sector, \(K^{\dagger}\) returns amplitude from the leakage sector, and \(B\) governs internal circulation within \(\mathcal{H}_{L}\). The theorem establishes that leakage is redistribution rather than destruction. For an initially coherent crossing state \(\psi_{PQ}(0)\), amplitude enters the leakage sector according to \[\lambda(t)=tK\psi_{PQ}(0)+O(t^{2}),\] and subsequently evolves through the internal circulation operator \[e^{tB}.\] The resulting leading-order return contribution to the crossing sector is \[R(t)=K^{\dagger}e^{tB}K\psi_{PQ}(0).\] This return term is identified as the residual surface return of the extended Q5 architecture. A central result of the theorem is that residual return is not automatically restorative. The effect of the returned phase is determined entirely by its alignment with the gate-admissible crossing component \[\psi_Y(t)=\Pi_Y \Psi(t).\] The coherence response is governed by the real overlap \[\Re\langle \psi_Y(t),R(t)\rangle.\] Three regimes emerge: \[\Re\langle \psi_Y,R\rangle > 0\] produces reinforcement of coherent crossing, \[\Re\langle \psi_Y,R\rangle < 0\] produces dephasing, and \[\Re\langle \psi_Y,R\rangle = 0\] produces a neutral contribution. The theorem, therefore, refines the decoherence picture introduced in T93. Decoherence is not interpreted as the disappearance of phase information but as the return of redistributed phase in a state that is no longer aligned with the admissible crossing mode. Misaligned return decreases gate-admission weight and reduces interference visibility even when the total norm remains conserved. Several corollaries follow. Generic residual return does not remain phase-locked to the crossing mode and therefore fails to restore coherence automatically. Exact recovery requires reconstruction of the full leakage-sector evolution \(e^{tB}\), making reversibility information-demanding even when the underlying dynamics remain unitary. Effective irreversibility is thus attributed to the information cost of reconstruction rather than to fundamental non-unitarity. T94 serves as the first formal return-transport theorem in the Q5 sequence. Together with T93, it provides a complete first-order picture of leakage dynamics: \[\text{crossing sector}\;\xrightarrow{K}\;\text{leakage sector}\;\xrightarrow{e^{tB}}\;\text{surface circulation}\;\xrightarrow{K^{\dagger}}\;\text{return transport}.\] The theorem establishes that the coherence consequences of leakage are determined not by the existence of returned phase, but by the alignment of that returned phase with the unique \(Y\)-admissible crossing mode.

•Jun 3, 2026•0 citations

Hamming-Weighted Admissible Deposition Theorem

Craig Edwin Holdway

TA32 identifies the structural object tested by the barrier comparator of TA30/TA31. The admitted helical phase is not merely passed through the Y-gate as a scalar phase: it is deposited as an admissible Hamming-weight occupancy profile on the 32-vertex Q5 transport graph. Any mismatch between the deposited profile and the inversion-compatible Hamming target produces a global closure defect, which is forced into the residual sector through the extraction block D. This identifies D as the Hamming-deposition defect extraction operator and provides the missing bridge from the TA31 block scaffold to the forced block computation of TA36. The argument proceeds in three layers: deposition → defect → residual forcing. The deposition map \( D_Y: H_M → C[V(Q5)] \) assigns to each admitted transport state an amplitude profile d_v on the 32 vertices. The total deposition defect \( ε_Y(ψ) = (Σ_v |d_v − d_v^{adm}|²)^{1/2} \) measures deviation from the inversion-compatible admissible target profile d^{adm}, determined jointly by Gray transport order, Hamming- weight compatibility, barrier inversion consistency, and Y-gate admissibility. The closure defect \( δ_C(ψ) = min_φ ‖U_C ψ − e^{iφ}ψ‖ \) measures global recursive closure consistency, with the minimization over φ factoring out trivial global phase. The main theorem establishes the defect bound \( δ_C(ψ) ≥ κ_C ε_Y(ψ) \) for a structural constant κ_C > 0, provided the admissible closure subspace is spectrally isolated - that is, U_C possesses a positive spectral gap away from the admissible eigenspace. The finiteness of Q5 guarantees a discrete spectrum; spectral isolation is the operative assumption yielding \( κ_C > 0 \) and is explicit. Consequences: if \( ε_Y(ψ) = 0 \) (Hamming-compatible deposition), the state remains in the coherent carrier sector with \( δ_C = 0. If ε_Y(ψ) > 0 \), recursive closure is defective and the non-admissible component is forced into the residual sector through \( D: H_M → H_R \). Three corollaries establish the identification of D as the defect extraction operator (with \( ‖Dψ_M‖ ≥ κ_C ε_Y(ψ_M)) \); the defect-free passage of fully admissible transport; and monotone residual forcing (larger deposition mismatch produces larger residual extraction). The explicit form of D from Q5 geometry is deferred to TA36. The admissible target profile \( d^{adm} \) is structurally characterized but not yet computed vertex-by-vertex; its explicit realization is a flagged future proof obligation.

•May 21, 2026•0 citations

Core Barrier Transport Composition

Craig Edwin Holdway

T97 unifies the previously developed Q5 crossing, leakage, and gate-admission frameworks into a single operator composition describing coherent barrier transport. The theorem establishes that barrier crossing is not free propagation but a constrained sequence of transformations acting on the full incoming fibre state. Starting from an incoming packet \[\psi_{\mathrm{full}}\in\mathcal{H}_{5\times5},\] The theorem identifies five sequential stages of transport: \[M_N\rightarrowD_N\rightarrow\mathcal{R}\rightarrow\Pi_Y\rightarrowD_QM_Q.\] These correspond respectively to native-side kernel interaction, native-side transport, dimensional reduction into the reduced crossing sector, gate-admissibility selection, and dual-side propagation. The resulting transport law is \[\psi_{\mathrm{out}}=D_QM_Q\,\Pi_Y\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}.\] This expression provides the first complete operator-level description of barrier transport within the Q5 framework. The theorem begins by introducing the transport operators. The native-side operators \(M_N\) and \(D_N\) act on the full \(5\times5\) fibre geometry. The reduction map \[\mathcal{R}:\mathcal{H}_{5\times5}\rightarrow\mathbb{C}^{2}\] implements the dimensional reduction that extracts the surviving \(P/Q\) crossing sector. The gate projector \[\Pi_Y=|Y\rangle\langle Y|\] Introduced in T96 selects the admissible quarter-turn crossing component. Finally, the dual-side operators \(M_Q\) and \(D_Q\) propagate the admitted state after barrier crossing. The theorem establishes that the reduced crossing state is \[\psi_{PQ}=\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}},\] and that the admissible crossing component is \[\psi_Y=\Pi_Y\psi_{PQ}.\] Only this projected component is eligible for coherent transport. The complementary component \[K\psi_{PQ}=(I-\Pi_Y)\psi_{PQ}\] enters the leakage sector described in T93–T96. The outgoing transported state is therefore obtained by applying the dual-side operators to the admitted component: \[\psi_{\mathrm{out}}=D_QM_Q\psi_Y.\] Substitution yields the full transport composition. Several structural consequences follow. A state crosses coherently if and only if \[\Pi_Y\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\neq0.\] Thus, coherent transport requires a nonzero overlap between the reduced crossing state and the admissible \(Y\)-mode. States with zero projection onto the \(Y\)-mode fail the crossing condition and enter the leakage branch. The theorem further demonstrates that the ordering of operators is not arbitrary. Reduction must occur after native-side processing, while gate selection must occur before dual-side propagation. The gate projector, therefore, occupies the central position within the transport architecture, separating state preparation from post-crossing propagation. A direct connection is established with T96. Since \[\Pi_Y=|Y\rangle\langle Y|,\] The crossing condition becomes \[\psi_{PQ}\not\perp|Y\rangle.\] The gate-admission strength is therefore \[C_Y(\psi_{PQ})=\frac12|P-iQ|^2,\] providing a computable measure of crossing eligibility in terms of the reduced crossing amplitudes. T97 serves as the foundational transport-composition theorem of the Q5 framework. It links the reduced crossing sector, the leakage architecture, and the gate projector into a single operator pipeline, establishing the canonical ordering of processes that govern coherent barrier transport.

•Jun 3, 2026•0 citations

Forced Residual Reinjection Block

Craig Edwin Holdway

TA38 derives the reinjection block \(C_{\mathcal B}:\mathcal H_R\to\mathcal H_M\) of the barrier-scattering matrix from the Q5 admissibility architecture. Given the residual state circulated by TA36 and TA37, only the component of residual return lying in the \(Y\)-admissible gate subspace may re-enter the coherent carrier sector. This forces the reinjection block to take the form\[C_{\mathcal B}=\Pi_Y\,\mathcal U_{\mathrm{return}}\big|_{\mathcal H_R}.\]The theorem also gives the exact nonvanishing condition: reinjection occurs precisely when the residual return transport has nonzero overlap with \(\operatorname{im}(\Pi_Y)\). The resulting carrier output consists of direct carrier transport plus a lagged residual reinforcement term,\[\psi_M^{\mathrm{out}}(t)=A_{\mathcal B}\psi_M+C_{\mathcal B}e^{tE_{\mathcal B}}D_{\mathcal B}\psi_M.\]Together with TA36 and TA37, this completes the forced off-diagonal block trilogy: extraction, mediated circulation, and admissible reinjection. The result shows that the residual sector of the barrier-scattering matrix is geometrically constrained by the Q5 architecture rather than introduced as a phenomenological model. Status: solid for the forced structure of \(C_{\mathcal B}\); conditional for nontrivial reinjection pending explicit computation of the leakage generator \(A_L\).

•May 23, 2026•0 citations

Extended Barrier Transport with Leakage

Craig Edwin Holdway

T98 extends the coherent-crossing transport pipeline of T97 into a complete two-branch barrier architecture. Rather than tracking only the gate-admitted component, the theorem follows both the admitted and rejected portions of the reduced crossing state, yielding the minimal extended transport model for barrier interaction. Beginning with an incoming fibre state \[\psi_{\mathrm{full}}\in\mathcal{H}_{5\times5},\] The native-side transport and reduction operators produce the reduced crossing state \[\psi_{PQ}=\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\in\mathbb{C}^{2}.\] Using the gate-admission projector \(\Pi_Y\) and leakage complement \[K=I-\Pi_Y,\] Introduced in T96, the reduced state decomposes orthogonally into \[\psi_{PQ}=\Pi_Y\psi_{PQ}+K\psi_{PQ}.\] The first component satisfies the \(Y\)-gate condition and is eligible for coherent crossing. The second component fails gate admission and enters the leakage branch. The theorem derives the complete extended transport operator \[\mathcal{T}_{\mathrm{ext}}=\begin{pmatrix}D_QM_Q\,\Pi_Y\,\mathcal{R}\,D_NM_N\\[0.4em]K\,\mathcal{R}\,D_NM_N\end{pmatrix},\] which simultaneously produces both outputs of barrier interaction. Applied to an incoming fibre state, the result is \[\mathcal{T}_{\mathrm{ext}}\psi_{\mathrm{full}}=\begin{pmatrix}D_QM_Q\,\Pi_Y\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\\[0.4em]K\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\end{pmatrix}.\] The upper component is the coherent crossing branch propagating through the barrier into the dual-side sector. The lower component is the leakage branch consisting of phase content that reaches the reduced crossing sector but fails the \(Y\)-gate condition. A key consequence is that generic barrier interaction is neither complete transmission nor complete rejection. Most states decompose into both branches simultaneously: \[\psi_{PQ}=\Pi_Y\psi_{PQ}+K\psi_{PQ}.\] The barrier, therefore, acts as a filter rather than a binary gate. Coherent crossing and leakage are complementary outcomes of the same reduced crossing state. The theorem further establishes the complete-crossing and complete-leakage limits. A state crosses cleanly if and only if \[K\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}=0,\] equivalently, \[\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\in\operatorname{span}\{|Y\rangle\}.\] Conversely, a state exhibits complete leakage if and only if \[\Pi_Y\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}=0,\] so that no coherent crossing component survives. Using the orthogonal decomposition established in T96, the theorem preserves the norm split \[C_Y+D_Y=1,\] where \[C_Y=\|\Pi_Y\psi_{PQ}\|^2\] is the gate-admission weight and \[D_Y=\|K\psi_{PQ}\|^2\] is the leakage weight. A major consequence of the theorem is that the leakage branch becomes the explicit source of the residual return dynamics developed in T94. Substituting the reduced crossing state into the return formula yields \[R(t)=K^\dagger e^{tB}K\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}},\] providing a complete operator pathway from incoming fibre state to leakage circulation and subsequent return. T98 therefore completes the transport architecture initiated in T97. The barrier is revealed as a two-output filter that separates an incoming reduced state into an admitted crossing component and a rejected leakage component. Together with T93–T97, the theorem provides the first complete operator-level description of barrier transport, leakage generation, and residual return within the Q5 framework.

•Jun 3, 2026•0 citations
TA30 is a structural synthesis theorem unifying the post-T90 barrier machinery into a single operator interpretation. Earlier theorems established admissible Y-gate projection, complementary leakage sectors, antisymmetric transport survival, helical leakage propagation, lag-return phase bias, and residual phase redistribution as separate results. TA30 compresses these into one operative principle: the barrier acts as a coherence-selective inversion comparator rather than merely a separator. The full transport pipeline (T97) evolves the fibre state as ( ψ_out = D_Q M_Q Π_Y R D_N M_N ψ_full ), acting on states in ( H_{5×5} ). Every reduced transport state decomposes into an admissible crossing component ( Π_Y ψ_{PQ} )and a complementary residual component ( Kψ_{PQ} ). From T88/T89, symmetric dressing contributions cancel under inversion conjugacy ( (S_n + S_d = 0) ), so only antisymmetric, order-sensitive transport structure survives barrier comparison. Residual transport propagates helically through the three-mode chain u_2 ↔ u_3 ↔ u_4 under the adjacency operator ( A_L = (1/√80)·[phase matrix] ) (T127), with no direct u_2 ↔ u_4 coupling. The middle mode acts as a mandatory balancing intermediary. Residual return (T94/T121) induces lag-phase observable correction ( δP = κsin(2θ)Δ_Y(t)cosφ ), with coupling strength ( κ = 1/√40 ) closing consistently with the derived transport normalization (T126). The residual scattering architecture is formalized through a block operator S_B = [[A, C], [D, E]], where A governs coherent carrier transport, D extracts phase-defective structure into residual fibres, C reinjerts circulated residual into coherent transport, and E governs residual redistribution and balancing circulation. The spectral radius of E classifies the dynamical regime: ρ(E) < 1 damps residual circulation, ρ(E) = 1 gives conservative circulation, ρ(E) > 1 produces rupture. The complement sector can function as a stabilizing coherence reservoir provided ρ(E) ≤ 1. The central structural result is that coherent transport is stabilized not by annihilating phase incompatibility but by exporting it into dynamically active residual-balancing fibres. The complement sector is not discarded leakage but an active balancing ecology. Explicit computation of block entries A, C, D, E from Q5 geometry is the primary remaining open computation, addressed in TA31–TA35. Physical interpretations (coherence-selective scattering, open-system phase stabilization, structured decoherence redistribution) remain conditional.
TA31 converts the TA30 barrier-comparator picture into an explicit operator form. The barrier is modelled as a five-channel scattering system with Hilbert space H5=spanBL,L,M,R,BR H_5 = span{B_L, L, M, R, B_R} H5​=spanBL​,L,M,R,BR​, decomposed into a three-channel coherent triadic carrier sector HM=spanL,M,R H_M = span{L, M, R} HM​=spanL,M,R and a two-channel asymmetric residual-balancing sector HR=spanBL,BR H_R = span{B_L, B_R} HR​=spanBL​,BR​. The admissible Y-gate split ψPQ=ΠYψPQ+KψPQ ψ_{PQ} = Π_Y ψ_{PQ} + Kψ_{PQ} ψPQ​=ΠY​ψPQ​+KψPQ​ (T96/T122), together with the three-mode helical leakage chain u_2 ↔ u_3 ↔ u_4 with no direct u_2 ↔ u_4 coupling (T127), forces a (3+2)×(3+2) block scattering structure. The barrier scattering operator takes block form S_B = [[A, C], [D, E]], where A: H_M → H_M governs coherent triadic carrier transport; D: H_M → H_R extracts phase-defective structure into residual fibres; C: H_R → H_M reinjerts circulated residual as coherent reinforcement; and E: H_R → H_R governs residual redistribution and balancing circulation. Four corollaries establish: the residual extraction channel (DM_in is the extraction term); the residual reinforcement channel (CR_in is the reinjection term); the residual circulation channel (E as the operator-level complement-sector balancing); and the coherence maintenance condition, repeated coherent transport remains stable when ‖DMin‖ ‖DM_in‖ ‖DMi​n‖ and ‖CRin‖ ‖CR_in‖ ‖CRi​n‖remain bounded and ρ(E)≤1 ρ(E) ≤ 1 ρ(E)≤1. The spectral radius condition classifies three dynamical regimes:ρ(E)<1 ρ(E) < 1 ρ(E)<1 damps residual mismatch, ρ(E)=1 ρ(E) = 1 ρ(E)=1gives conservative circulation, and ρ(E)>1 ρ(E) > 1 ρ(E)>1 produces instability and possible coherence rupture. Unitarity of S_B is not asserted. Explicit computation of block entries A, C, D, E as functions of Q5 geometry (w_H, Gray, Π_Y, K, Θ, A_L) is deferred to TA35 (geometric block-forcing definitions), TA36 (forced extraction block D), TA37 (forced circulation block E), and TA38 (forced reinjection block C). TA31 provides the structural scaffold that those theorems fill in. Physical interpretation beyond the transport formalism remains conditional.
T94 extends the leakage-state framework of T93 by deriving the leading-order return dynamics of phase amplitude that leaves the YYY-admissible crossing sector. Rather than treating leakage as a terminal loss mechanism, the theorem models leakage as a redistribution process in which rejected amplitude enters a secondary sector, circulates internally, and subsequently returns to the observable crossing sector. The extended state space is Hext=C2⊕HL,\mathcal{H}_{\mathrm{ext}}=\mathbb{C}^{2}\oplus\mathcal{H}_{L},Hext​=C2⊕HL​, with dynamics governed by the coupled generator G=(A−K†KB),\mathcal{G}=\begin{pmatrix}A & -K^{\dagger} \\K & B\end{pmatrix},G=(AK​−K†B​), where KKK transfers amplitude into the leakage sector, K†K^{\dagger}K† returns amplitude from the leakage sector, and BBB governs internal circulation within HL\mathcal{H}_{L}HL​. The theorem establishes that leakage is redistribution rather than destruction. For an initially coherent crossing state ψPQ(0)\psi_{PQ}(0)ψPQ​(0), amplitude enters the leakage sector according to λ(t)=tKψPQ(0)+O(t2),\lambda(t)=tK\psi_{PQ}(0)+O(t^{2}),λ(t)=tKψPQ​(0)+O(t2), and subsequently evolves through the internal circulation operator etB.e^{tB}.etB. The resulting leading-order return contribution to the crossing sector is R(t)=K†etBKψPQ(0).R(t)=K^{\dagger}e^{tB}K\psi_{PQ}(0).R(t)=K†etBKψPQ​(0). This return term is identified as the residual surface return of the extended Q5 architecture. A central result of the theorem is that residual return is not automatically restorative. The effect of the returned phase is determined entirely by its alignment with the gate-admissible crossing component ψY(t)=ΠYΨ(t).\psi_Y(t)=\Pi_Y \Psi(t).ψY​(t)=ΠY​Ψ(t). The coherence response is governed by the real overlap ℜ⟨ψY(t),R(t)⟩.\Re\langle \psi_Y(t),R(t)\rangle.ℜ⟨ψY​(t),R(t)⟩. Three regimes emerge: ℜ⟨ψY,R⟩>0\Re\langle \psi_Y,R\rangle > 0ℜ⟨ψY​,R⟩>0 produces reinforcement of coherent crossing, ℜ⟨ψY,R⟩<0\Re\langle \psi_Y,R\rangle < 0ℜ⟨ψY​,R⟩<0 produces dephasing, and ℜ⟨ψY,R⟩=0\Re\langle \psi_Y,R\rangle = 0ℜ⟨ψY​,R⟩=0 produces a neutral contribution. The theorem, therefore, refines the decoherence picture introduced in T93. Decoherence is not interpreted as the disappearance of phase information but as the return of redistributed phase in a state that is no longer aligned with the admissible crossing mode. Misaligned return decreases gate-admission weight and reduces interference visibility even when the total norm remains conserved. Several corollaries follow. Generic residual return does not remain phase-locked to the crossing mode and therefore fails to restore coherence automatically. Exact recovery requires reconstruction of the full leakage-sector evolution etBe^{tB}etB, making reversibility information-demanding even when the underlying dynamics remain unitary. Effective irreversibility is thus attributed to the information cost of reconstruction rather than to fundamental non-unitarity. T94 serves as the first formal return-transport theorem in the Q5 sequence. Together with T93, it provides a complete first-order picture of leakage dynamics: crossing sector  →K  leakage sector  →etB  surface circulation  →K†  return transport.\text{crossing sector}\;\xrightarrow{K}\;\text{leakage sector}\;\xrightarrow{e^{tB}}\;\text{surface circulation}\;\xrightarrow{K^{\dagger}}\;\text{return transport}.crossing sectorK​leakage sectoretB​surface circulationK†​return transport. The theorem establishes that the coherence consequences of leakage are determined not by the existence of returned phase, but by the alignment of that returned phase with the unique YYY-admissible crossing mode.
TA32 identifies the structural object tested by the barrier comparator of TA30/TA31. The admitted helical phase is not merely passed through the Y-gate as a scalar phase: it is deposited as an admissible Hamming-weight occupancy profile on the 32-vertex Q5 transport graph. Any mismatch between the deposited profile and the inversion-compatible Hamming target produces a global closure defect, which is forced into the residual sector through the extraction block D. This identifies D as the Hamming-deposition defect extraction operator and provides the missing bridge from the TA31 block scaffold to the forced block computation of TA36. The argument proceeds in three layers: deposition → defect → residual forcing. The deposition map DY:HM→C[V(Q5)] D_Y: H_M → C[V(Q5)] DY​:HM​→C[V(Q5)] assigns to each admitted transport state an amplitude profile d_v on the 32 vertices. The total deposition defect εY(ψ)=(Σv∣dv−dvadm∣2)1/2 ε_Y(ψ) = (Σ_v |d_v − d_v^{adm}|²)^{1/2} εY​(ψ)=(Σv​∣dv​−dvadm​∣2)1/2 measures deviation from the inversion-compatible admissible target profile d^{adm}, determined jointly by Gray transport order, Hamming- weight compatibility, barrier inversion consistency, and Y-gate admissibility. The closure defect δC(ψ)=minφ‖UCψ−eiφψ‖ δ_C(ψ) = min_φ ‖U_C ψ − e^{iφ}ψ‖ δC​(ψ)=minφ​‖UC​ψ−eiφψ‖ measures global recursive closure consistency, with the minimization over φ factoring out trivial global phase. The main theorem establishes the defect bound δC(ψ)≥κCεY(ψ) δ_C(ψ) ≥ κ_C ε_Y(ψ) δC​(ψ)≥κC​εY​(ψ) for a structural constant κ_C > 0, provided the admissible closure subspace is spectrally isolated - that is, U_C possesses a positive spectral gap away from the admissible eigenspace. The finiteness of Q5 guarantees a discrete spectrum; spectral isolation is the operative assumption yielding κC>0 κ_C > 0 κC​>0 and is explicit. Consequences: if εY(ψ)=0 ε_Y(ψ) = 0 εY​(ψ)=0 (Hamming-compatible deposition), the state remains in the coherent carrier sector with δC=0.IfεY(ψ)>0 δ_C = 0. If ε_Y(ψ) > 0 δC​=0.IfεY​(ψ)>0, recursive closure is defective and the non-admissible component is forced into the residual sector through D:HM→HR D: H_M → H_R D:HM​→HR​. Three corollaries establish the identification of D as the defect extraction operator (with ‖DψM‖≥κCεY(ψM)) ‖Dψ_M‖ ≥ κ_C ε_Y(ψ_M)) ‖DψM​‖≥κC​εY​(ψM​)); the defect-free passage of fully admissible transport; and monotone residual forcing (larger deposition mismatch produces larger residual extraction). The explicit form of D from Q5 geometry is deferred to TA36. The admissible target profile dadm d^{adm} dadm is structurally characterized but not yet computed vertex-by-vertex; its explicit realization is a flagged future proof obligation.
T97 unifies the previously developed Q5 crossing, leakage, and gate-admission frameworks into a single operator composition describing coherent barrier transport. The theorem establishes that barrier crossing is not free propagation but a constrained sequence of transformations acting on the full incoming fibre state. Starting from an incoming packet ψfull∈H5×5,\psi_{\mathrm{full}}\in\mathcal{H}_{5\times5},ψfull​∈H5×5​, The theorem identifies five sequential stages of transport: \[M_N\rightarrowD_N\rightarrow\mathcal{R}\rightarrow\Pi_Y\rightarrowD_QM_Q.\] These correspond respectively to native-side kernel interaction, native-side transport, dimensional reduction into the reduced crossing sector, gate-admissibility selection, and dual-side propagation. The resulting transport law is ψout=DQMQ ΠY R DNMN ψfull.\psi_{\mathrm{out}}=D_QM_Q\,\Pi_Y\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}.ψout​=DQ​MQ​ΠY​RDN​MN​ψfull​. This expression provides the first complete operator-level description of barrier transport within the Q5 framework. The theorem begins by introducing the transport operators. The native-side operators MNM_NMN​ and DND_NDN​ act on the full 5×55\times55×5 fibre geometry. The reduction map R:H5×5→C2\mathcal{R}:\mathcal{H}_{5\times5}\rightarrow\mathbb{C}^{2}R:H5×5​→C2 implements the dimensional reduction that extracts the surviving P/QP/QP/Q crossing sector. The gate projector ΠY=∣Y⟩⟨Y∣\Pi_Y=|Y\rangle\langle Y|ΠY​=∣Y⟩⟨Y∣ Introduced in T96 selects the admissible quarter-turn crossing component. Finally, the dual-side operators MQM_QMQ​ and DQD_QDQ​ propagate the admitted state after barrier crossing. The theorem establishes that the reduced crossing state is ψPQ=R DNMN ψfull,\psi_{PQ}=\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}},ψPQ​=RDN​MN​ψfull​, and that the admissible crossing component is ψY=ΠYψPQ.\psi_Y=\Pi_Y\psi_{PQ}.ψY​=ΠY​ψPQ​. Only this projected component is eligible for coherent transport. The complementary component KψPQ=(I−ΠY)ψPQK\psi_{PQ}=(I-\Pi_Y)\psi_{PQ}KψPQ​=(I−ΠY​)ψPQ​ enters the leakage sector described in T93–T96. The outgoing transported state is therefore obtained by applying the dual-side operators to the admitted component: ψout=DQMQψY.\psi_{\mathrm{out}}=D_QM_Q\psi_Y.ψout​=DQ​MQ​ψY​. Substitution yields the full transport composition. Several structural consequences follow. A state crosses coherently if and only if ΠY R DNMN ψfull≠0.\Pi_Y\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\neq0.ΠY​RDN​MN​ψfull​=0. Thus, coherent transport requires a nonzero overlap between the reduced crossing state and the admissible YYY-mode. States with zero projection onto the YYY-mode fail the crossing condition and enter the leakage branch. The theorem further demonstrates that the ordering of operators is not arbitrary. Reduction must occur after native-side processing, while gate selection must occur before dual-side propagation. The gate projector, therefore, occupies the central position within the transport architecture, separating state preparation from post-crossing propagation. A direct connection is established with T96. Since ΠY=∣Y⟩⟨Y∣,\Pi_Y=|Y\rangle\langle Y|,ΠY​=∣Y⟩⟨Y∣, The crossing condition becomes ψPQ⊥̸∣Y⟩.\psi_{PQ}\not\perp|Y\rangle.ψPQ​⊥∣Y⟩. The gate-admission strength is therefore CY(ψPQ)=12∣P−iQ∣2,C_Y(\psi_{PQ})=\frac12|P-iQ|^2,CY​(ψPQ​)=21​∣P−iQ∣2, providing a computable measure of crossing eligibility in terms of the reduced crossing amplitudes. T97 serves as the foundational transport-composition theorem of the Q5 framework. It links the reduced crossing sector, the leakage architecture, and the gate projector into a single operator pipeline, establishing the canonical ordering of processes that govern coherent barrier transport.
TA38 derives the reinjection block CB:HR→HMC_{\mathcal B}:\mathcal H_R\to\mathcal H_MCB​:HR​→HM​ of the barrier-scattering matrix from the Q5 admissibility architecture. Given the residual state circulated by TA36 and TA37, only the component of residual return lying in the YYY-admissible gate subspace may re-enter the coherent carrier sector. This forces the reinjection block to take the formCB=ΠY Ureturn∣HR.C_{\mathcal B}=\Pi_Y\,\mathcal U_{\mathrm{return}}\big|_{\mathcal H_R}.CB​=ΠY​Ureturn​​HR​​.The theorem also gives the exact nonvanishing condition: reinjection occurs precisely when the residual return transport has nonzero overlap with im⁡(ΠY)\operatorname{im}(\Pi_Y)im(ΠY​). The resulting carrier output consists of direct carrier transport plus a lagged residual reinforcement term,ψMout(t)=ABψM+CBetEBDBψM.\psi_M^{\mathrm{out}}(t)=A_{\mathcal B}\psi_M+C_{\mathcal B}e^{tE_{\mathcal B}}D_{\mathcal B}\psi_M.ψMout​(t)=AB​ψM​+CB​etEB​DB​ψM​.Together with TA36 and TA37, this completes the forced off-diagonal block trilogy: extraction, mediated circulation, and admissible reinjection. The result shows that the residual sector of the barrier-scattering matrix is geometrically constrained by the Q5 architecture rather than introduced as a phenomenological model. Status: solid for the forced structure of CBC_{\mathcal B}CB​; conditional for nontrivial reinjection pending explicit computation of the leakage generator ALA_LAL​.
T98 extends the coherent-crossing transport pipeline of T97 into a complete two-branch barrier architecture. Rather than tracking only the gate-admitted component, the theorem follows both the admitted and rejected portions of the reduced crossing state, yielding the minimal extended transport model for barrier interaction. Beginning with an incoming fibre state ψfull∈H5×5,\psi_{\mathrm{full}}\in\mathcal{H}_{5\times5},ψfull​∈H5×5​, The native-side transport and reduction operators produce the reduced crossing state ψPQ=R DNMN ψfull∈C2.\psi_{PQ}=\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\in\mathbb{C}^{2}.ψPQ​=RDN​MN​ψfull​∈C2. Using the gate-admission projector ΠY\Pi_YΠY​ and leakage complement K=I−ΠY,K=I-\Pi_Y,K=I−ΠY​, Introduced in T96, the reduced state decomposes orthogonally into ψPQ=ΠYψPQ+KψPQ.\psi_{PQ}=\Pi_Y\psi_{PQ}+K\psi_{PQ}.ψPQ​=ΠY​ψPQ​+KψPQ​. The first component satisfies the YYY-gate condition and is eligible for coherent crossing. The second component fails gate admission and enters the leakage branch. The theorem derives the complete extended transport operator Text=(DQMQ ΠY R DNMNK R DNMN),\mathcal{T}_{\mathrm{ext}}=\begin{pmatrix}D_QM_Q\,\Pi_Y\,\mathcal{R}\,D_NM_N\\[0.4em]K\,\mathcal{R}\,D_NM_N\end{pmatrix},Text​=(DQ​MQ​ΠY​RDN​MN​KRDN​MN​​), which simultaneously produces both outputs of barrier interaction. Applied to an incoming fibre state, the result is Textψfull=(DQMQ ΠY R DNMN ψfullK R DNMN ψfull).\mathcal{T}_{\mathrm{ext}}\psi_{\mathrm{full}}=\begin{pmatrix}D_QM_Q\,\Pi_Y\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\\[0.4em]K\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\end{pmatrix}.Text​ψfull​=(DQ​MQ​ΠY​RDN​MN​ψfull​KRDN​MN​ψfull​​). The upper component is the coherent crossing branch propagating through the barrier into the dual-side sector. The lower component is the leakage branch consisting of phase content that reaches the reduced crossing sector but fails the YYY-gate condition. A key consequence is that generic barrier interaction is neither complete transmission nor complete rejection. Most states decompose into both branches simultaneously: ψPQ=ΠYψPQ+KψPQ.\psi_{PQ}=\Pi_Y\psi_{PQ}+K\psi_{PQ}.ψPQ​=ΠY​ψPQ​+KψPQ​. The barrier, therefore, acts as a filter rather than a binary gate. Coherent crossing and leakage are complementary outcomes of the same reduced crossing state. The theorem further establishes the complete-crossing and complete-leakage limits. A state crosses cleanly if and only if K R DNMN ψfull=0,K\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}=0,KRDN​MN​ψfull​=0, equivalently, R DNMN ψfull∈span⁡{∣Y⟩}.\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}\in\operatorname{span}\{|Y\rangle\}.RDN​MN​ψfull​∈span{∣Y⟩}. Conversely, a state exhibits complete leakage if and only if ΠY R DNMN ψfull=0,\Pi_Y\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}}=0,ΠY​RDN​MN​ψfull​=0, so that no coherent crossing component survives. Using the orthogonal decomposition established in T96, the theorem preserves the norm split CY+DY=1,C_Y+D_Y=1,CY​+DY​=1, where CY=∥ΠYψPQ∥2C_Y=\|\Pi_Y\psi_{PQ}\|^2CY​=∥ΠY​ψPQ​∥2 is the gate-admission weight and DY=∥KψPQ∥2D_Y=\|K\psi_{PQ}\|^2DY​=∥KψPQ​∥2 is the leakage weight. A major consequence of the theorem is that the leakage branch becomes the explicit source of the residual return dynamics developed in T94. Substituting the reduced crossing state into the return formula yields R(t)=K†etBK R DNMN ψfull,R(t)=K^\dagger e^{tB}K\,\mathcal{R}\,D_NM_N\,\psi_{\mathrm{full}},R(t)=K†etBKRDN​MN​ψfull​, providing a complete operator pathway from incoming fibre state to leakage circulation and subsequent return. T98 therefore completes the transport architecture initiated in T97. The barrier is revealed as a two-output filter that separates an incoming reduced state into an admitted crossing component and a rejected leakage component. Together with T93–T97, the theorem provides the first complete operator-level description of barrier transport, leakage generation, and residual return within the Q5 framework.