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Quantum Time Reversal Does Not Imply Temporal Inversion: An Admissibility Analysis of Time Manipulation Claims

A J Paton

Published Mar 25, 2026• 0 citations
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Abstract

This paper evaluates claims that quantum systems demonstrate reversal of time. Applying the Paton Admissibility Framework, it is shown that such experiments reflect controlled reconfiguration of state trajectories rather than inversion of temporal structure. Time is defined as an ordering of admissible transitions, and no admissible mechanism supports full temporal reversal. The result is a structural clarification: quantum “time reversal” represents admissible reconstruction within constraint, not reversal of time itself.

DOI
10.5281/zenodo.19212620

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This paper evaluates claims that quantum systems demonstrate reversal of time. Applying the Paton Admissibility Framework, it is shown that such experiments reflect controlled reconfiguration of state trajectories rather than inversion of temporal structure. Time is defined as an ordering of admissible transitions, and no admissible mechanism supports full temporal reversal. The result is a structural clarification: quantum “time reversal” represents admissible reconstruction within constraint, not reversal of time itself.
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This paper presents a structural interpretation of quantum measurement within the Paton System framework. Quantum systems are described as occupying sets of admissible configurations prior to measurement. Measurement is treated as a constraint interaction that reduces the admissible configuration set to a single outcome. Collapse is understood as the reduction of admissible configurations under constraint rather than as an additional physical mechanism. The observed outcome corresponds to the configuration that satisfies the combined constraints at the point of interaction. This framework does not modify quantum mechanics and introduces no new ontology. It provides a pre-theoretical structural lens describing measurement as the resolution of admissibility under constraint.
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.
Albert and Callender have challenged the received view that theories like classical electrodynamics and non-relativistic quantum mechanics are time reversal invariant. They claim that time reversal should correspond to the mere reversal of the temporal order of the instantaneous states, without any accompanying change of the instantaneous state as in the standard view. As such, Albert and Callender claim, these theories are not time reversal invariant. The view of Albert and Callender has been much criticized, with many philosophers arguing that time reversal may correspond to more than the reversal of the temporal order. In this paper, we will not so much engage with that aspect of the debate, but rather deflate the disagreement by exploiting the ontological underdetermination. Namely, it will be argued that with a suitable choice of ontology, these theories are in fact time reversal invariant in the sense of Albert and Callender, in agreement with the standard view.
Recent interpretations of quantum mechanics suggest that particles existing in superposition occupy multiple locations simultaneously in a manner that could scale to macroscopic or cosmological effects. This paper applies the Paton Admissibility Framework to clarify the distinction between unresolved quantum states and resolved observational instances. It is shown that superposition represents a pre-datum condition and does not constitute duplication within resolved space. Claims that such behaviour implies multiverse interaction or large-scale instability are identified as misclassifications arising from failure to apply admissibility constraints. The result is a structural clarification: superposition does not imply duplication, and unresolved states do not support ontological escalation.