Contract-Relative Quantum Realisations of Classical Processes

Abstract Contract-Relative Quantum Realisations of Classical Processes develops a general theory of how the exact resource cost of representing an independently fixed native system depends on the operational access contract imposed on that system. Rather than assigning a single intrinsic “dimension” to a process or operational object, the paper treats realisation as a fully typed problem determined jointly by the native system, the access contract, the admitted realisation category and the tolerated error. The framework defines contract-indexed achievable resource regions, declared-memory closure, lawful contract restriction and resource monotonicity. Strengthening a contract can require a realisation to preserve or recover distinctions that a weaker behavioural contract is permitted to compress, while the independently fixed native system itself remains unchanged. Lawful contract restriction induces reverse inclusion of achievable regions, but strict separation requires additional lower and upper certificates. For stochastic processes, the paper introduces causal-state transparency as a recovery obligation imposed on an exact autonomous predictor at a declared inspection boundary. All persistent quantum, classical, controller, history and source-side information available at that boundary is included in the resource account. A direct-sum classical–quantum identity-capacity theorem proves that uniform worst-case recovery probability τ across N intrinsic causal classes requires identity capacity at least ⌈τN⌉. The theorem is then applied to two external stochastic-process families. Periodically modulated decay processes exhibit an unbounded finite separation: exact autonomous prediction has minimum identity capacity 2, exact causal-state transparency has minimum capacity N, and every fixed positive transparency threshold forces a lower bound growing as ⌈τN⌉. For the dual-Poisson process, an exact qubit predictor exists under the weak prediction contract, while every positive uniform worst-case transparency threshold makes the finite-capacity achievable region empty. This is a contract-induced loss of finite feasibility on the same native process, not a claim that the process itself ceases to exist or that no larger infinite-capacity realisation could exist. The paper then returns to the TUS OS discovery instance from which the general problem arose. The same independently fixed 64-state canonical target admits a complete static quantum-operational Atlas of exact minimum Hilbert dimension 4, while recovery-complete LANDING selected-line instrument access, GUIDANCE selected-line readout and GUIDANCE selected-line-and-endpoint joint-instrument access each have exact minimum Hilbert dimension 64 within the same declared representation category. The native target does not change; the operational access obligation does. Together, the TUS OS, periodically modulated decay and dual-Poisson results establish three distinct exact contract-relative regimes: strict finite separation: 4 → 64; unbounded finite separation: 2 → N; finite-capacity breakdown: 2 → ∅finite for every τ > 0. These are three instances of one general structural law, not three identical recovery mechanisms. TUS OS uses admitted experiment families that collectively separate its canonical carriers, whereas the stochastic-process results use direct causal-state decoding at a declared inspection boundary. The results establish that finite-capacity behavioural sufficiency does not imply positive uniform worst-case recoverability of native predictive identity, and that exact representation cost is not a context-free property of the native system alone. It depends on the complete typed obligation imposed on an admitted realisation. The paper does not claim physical quantum execution, quantum advantage, a universal scalar resource, equivalence of TUS OS recovery with causal-state transparency, or finite-capacity breakdown for prior-weighted dual-Poisson transparency. This work is Paper 6 in the TUS OS quantum-operational research programme. Supporting mathematical papers This paper is the sixth paper in the TUS OS quantum-operational research programme. Papers 1–5 constitute the TUS OS discovery, mathematical-foundation and system-recognition corpus from which the present contract-relative resource theory develops. Together, they establish the geometric, prepare–measure, global-representation, complete-future, process, recovery, native-synthesis and system-level results used as the TUS OS foundation case in the present work. Paper 1 — Canonical Tetrahedral Qubit-State Geometry in the TUS OS TriadXOR Completion, Receipt Verification and the Qubit-Geometric Semantic WitnessEstablishes the canonical tetrahedral geometry, unique XOR completion, exact qubit-SIC representation and centred-face trine geometry. Paper 2 — The TUS OS Operational CalculusClassical Construction of Exact Qubit Prepare–Measure Behaviour from a Receipt-Custodied Engine ArchitectureEstablishes exact full-carrier qubit prepare–measure behaviour from the deterministic classical engine under the declared Coordinate-Incidence Operational Harness. For each lawful foundation, the 64 six-bit carriers map to exactly 27 anchor-relative qubit preparations, while the separately declared face Harness gives the exact trine table. Paper 3 — From Finite Relational Structure to Qubit Operational FormAmbient Foundations, Canonical Subatlas, Exact Global Quantum Dimension, GUIDANCE Witness, Sequential Closure and Global Representation in TUS OSEstablishes the repeated-common-effect static Atlas, its exact minimum complex Hilbert dimension 4, exact carrier-reconstruction structure and deterministic predictive-state minimum 64 for the frozen complete principal future language. Paper 4 — Technical Volume I — Formal Foundations and the Complete-Future CorpusNative Contract, Statistical Discrimination and the Invariant Probability ModuleEstablishes the frozen complete principal terminal future-experiment language, complete statistical separation of distinct carrier pairs, exact parity-resolved discrimination results, complement reachability and the 33-dimensional rational invariant probability module. Paper 4 — Technical Volume II — Orthogonality, Process Closure and Native Triadic SynthesisEstablishes universal complement-support orthogonality and its propagation under exact common-CPTP dynamics, the resulting common-CPTP process bounds, recovery-complete LANDING and GUIDANCE results, exact 64-dimensional selected-line instrument/readout minima at their declared contracts, an exact classical–quantum hybrid construction, and the native structural/predictive quotient correspondence. The state-only common-CPTP minimum remains bounded within 32–64 rather than being fixed at 64. Paper 5 — TUS OS as an Anchored Analog Quantum SystemNative Witnesses, Predictive Synthesis, and Access-Contract Resource SeparationDefines Analog Quantum Views and Anchored Analog Quantum Systems, proves that TUS OS is a proper Anchored Analog Quantum System on its 64-input abstract canonical corpus, elevates the inherited structural/predictive correspondence into the Predictive Synthesis Identity Theorem, and composes the recognition, predictive, resource and downstream-conservation results into the TUS OS Anchored Analog Quantum System Theorem. Paper 6 — Contract-Relative Quantum Realisations of Classical Processes — present workPredictive Compression, Vanishing Worst-Case Causal-State Transparency, and Finite-Dimensional BreakdownExtends the programme beyond the TUS-specific discovery corpus by formalising the contract-relative achievable-resource object (S,C,𝔐,ε) ⟼ Ach(S,C;𝔐,ε), and establishes three exact contract-relative regimes: strict finite separation, unbounded finite separation and finite-capacity breakdown. These are instantiated respectively by the TUS OS 4→64 separation, the PMD 2→N exact prediction-to-transparency separation, and dual-Poisson finite-capacity breakdown for every positive uniform worst-case transparency threshold. The present Paper 6 does not replace those proofs or re-establish the TUS OS quantum-operational construction. It changes the level of analysis. Holding the native system fixed while varying the operational access contract, admitted realisation category and tolerated error, it formalises the achievable-resource object Ach(S,C;𝔐,ε), and proves that exact representation cost is contract-relative rather than a context-free property of the native system alone. TUS OS supplies the exact finite strict-separation case. The periodically modulated decay family establishes unbounded finite growth: exact autonomous prediction has minimum identity capacity 2, exact causal-state transparency has minimum capacity N, and every fixed positive transparency threshold forces a lower bound growing with N. The dual-Poisson process establishes finite-capacity breakdown: an exact qubit predictor exists under the weaker prediction contract, whereas every positive uniform worst-case transparency threshold eliminates all finite-capacity exact realisations in the declared category. These three cases do not use identical recovery mechanisms. TUS OS uses admitted experiment families that collectively separate its canonical carriers, whereas PMD and dual-Poisson use direct causal-state decoding at a declared inspection boundary. Their common content is the contract-relative resource law: strengthening the operational distinctions that must remain accessible can increase exact representation cost—or eliminate finite-capacity feasibility—without changing the independently fixed native system. Files included Contract_Relative_Quantum_Realisations_of_Classical_Processes_v1.0.pdfMain public v1.0 paper and public release authority.Version: v1.0Release date: 14 August 2026SHA-256: 0bef1a4364dc99eae3d536d2c4ec480647d67f6d7fd37d7ede3aec6c6a6146d8 Contract_Relative_Quantum_Realisations_of_Classical_Pro