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Quantum State Admissibility

A J Paton

Published Mar 9, 2026• 0 citations
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Abstract

This paper interprets quantum mechanical state evolution through the admissibility framework of the Paton System. Rather than treating quantum states purely as mathematical vectors evolving under probabilistic measurement rules, the admissibility interpretation recognises that only states satisfying the governing constraints of the quantum system are structurally permitted. Quantum state space therefore represents a constrained admissible manifold in which physical evolution occurs. Measurement outcomes correspond to admissible state transitions within this constrained space. This perspective clarifies why quantum systems exhibit stable statistical behaviour while remaining fundamentally probabilistic: probability operates only within the geometry of states that are structurally permitted to exist.

DOI
10.5281/zenodo.18917419

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This paper interprets quantum mechanical state evolution through the admissibility framework of the Paton System. Rather than treating quantum states purely as mathematical vectors evolving under probabilistic measurement rules, the admissibility interpretation recognises that only states satisfying the governing constraints of the quantum system are structurally permitted. Quantum state space therefore represents a constrained admissible manifold in which physical evolution occurs. Measurement outcomes correspond to admissible state transitions within this constrained space. This perspective clarifies why quantum systems exhibit stable statistical behaviour while remaining fundamentally probabilistic: probability operates only within the geometry of states that are structurally permitted to exist.
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This paper clarifies the structural role of the Schrödinger equation within the Paton System. Rather than introducing new physical laws or modifying quantum mechanics, the equation is interpreted as governing admissible evolution of system states prior to observational selection. The wavefunction is treated as a representation of recursively evolving admissible structure within Tier-5 (continuation), while observation occurs at Tier-4 as a constrained projection of that structure. This distinction resolves common interpretational ambiguity by separating continuous evolution from discrete observation without altering established quantum formalism.
This paper clarifies the structural role of Hamiltonian evolution within the Paton System. Without introducing new physical laws or modifying classical or quantum mechanics, Hamiltonian dynamics are interpreted as describing structured admissible continuation of system states. The Hamiltonian is treated not as a physical substance, but as a generator of structured pathways through admissible state space. This interpretation separates structural evolution from physical interpretation while remaining fully consistent with established formalism.
This paper presents a structural interpretation of quantum entanglement within the Paton System framework. Entangled systems are described as sharing a constraint structure that governs admissibility jointly rather than independently. Admissibility is therefore evaluated at the level of the composite system rather than its individual components. Measurement outcomes in entangled systems reflect constraint-linked admissibility across the joint system. A measurement applied to one subsystem restricts the admissible configuration of the other through the shared constraint structure, without requiring signal transfer. This work does not modify quantum mechanics and introduces no new ontology. It provides a pre-theoretical structural lens in which entanglement is understood as shared constraint determining admissible configurations. It complements prior work on quantum state admissibility and quantum measurement as admissibility collapse without duplication.
This work proposes a structural framework for quantum measurement based on adaptive constraint operators.Instead of treating wavefunction collapse as an instantaneous and fundamental discontinuity, measurement is interpreted as the effective result of a sequence of constraint operations acting on the quantum state. The approach introduces a clear separation between dynamical evolution, governed by the Schrödinger equation, and constraint-based selection, which captures admissibility and measurement structure.Within this framework, measurement is modeled as a constraint cascade, where each constraint operator progressively restricts the state space. A key feature of the formulation is the incorporation of adaptive constraint operators, which depend on time and measurement history.This naturally leads to non-commutativity and provides a structural interpretation of contextuality in quantum measurement. A concrete example based on polarization measurement is presented, demonstrating consistency with standard quantum mechanics while offering an alternative interpretation of state reduction. This work does not aim to replace existing quantum theory, but rather to complement it by introducing an additional structural layer that may help clarify the role of measurement and admissibility in physical systems. Keywords: quantum measurement, constraint operators, contextuality, non-commutativity, quantum foundations Notes:This paper is part of an ongoing series exploring constraint-based formulations of physical theory.
This preprint develops a thermodynamic admissibility condition on the persistence of quantum identity in open systems. Standard quantum mechanics allows extremely large spaces of possible system histories, but only a small subset remains experimentally realisable once irreversible entropy production is taken into account. This work formalizes this as an admissibility constraint: any quantum system that preserves a stable, trackable identity over time must satisfy a finite budget on cumulative irreversible dissipation. No new forces, variables, or dynamics are added; the constraint is purely structural and compatible with existing open-systems formalisms. The paper connects this requirement with decoherence, spectrum broadcasting, quantum Darwinism, and the emergence of classical objectivity. It frames identity persistence as a pre-dynamical condition—necessary before predictions about evolution or measurement outcomes are meaningful. This structural account clarifies why only certain histories are physically realisable, how objectivity arises under irreversibility, and how thermodynamic bookkeeping parameters (such as an “identity budget”) implicitly constrain experimental practice. The result provides a unifying, thermodynamically grounded framework linking dissipative quantum processes, system architecture, and long-term identifiability.