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Superposition and Interaction: A Physical-Interaction Perspective on Quantum Measurement and the Double-Slit Experiment

manhal abood, Odai

Published Nov 3, 2025• 0 citations
Publisher
DOI
10.5281/zenodo.17509021

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This paper proposes a physically grounded interpretation of quantum measurement in which superposition is the natural state of isolated systems, while particle-like outcomes arise from inevitable physical interactions with the environment or measuring devices. The approach retains the standard mathematical formalism of quantum mechanics but reorganizes its conceptual structure to place interaction—understood as the exchange of energy, momentum, or information—at the center of the measurement process. It offers a unified explanation of the double-slit, delayed-choice, and quantum-eraser experiments, and suggests experimentally testable ways to link interaction strength to decoherence and the emergence of classicality.
This article presents a conceptual interpretation of the double-slit experiment using Feynman's path integral formulation. Rather than treating a quantum particle as a point-like object following a single trajectory, the particle's propagation is viewed as a distributed structure in 4D spacetime. In the path-integral picture, this structure is represented by a coherent sum over possible paths between emission and detection. From this perspective, the observed interference pattern emerges from the phase relationships between these possible spacetime paths. The article distinguishes between propagation and interaction. Propagation is described as an extended 4D process, while measurement appears as a localized spacetime event within a 3D spatial slice, producing the point-like detections observed in the double-slit experiment. The aim is not to propose a new physical theory or to explain the mechanism of collapse, but to provide an intuitive geometric interpretation of the standard quantum formalism and its relationship between quantum propagation, interference, and localized measurement outcomes. This is a conceptual essay and interpretive synthesis, not a proposal of a new physical theory.
A public science essay correcting popular misuse of quantum mechanics. The paper argues that “observer effect” should be replaced in public-facing explanations by “measurement effect,” because quantum measurement concerns physical interaction, detection, decoherence, and record formation rather than human consciousness. It reviews common misunderstandings of the double-slit experiment, Born’s rule, superposition, the uncertainty principle, decoherence, Schrödinger’s cat, Wigner’s friend, entanglement, delayed-choice experiments, quantum erasers, and quantum computing. Keywords:quantum mechanics; quantum measurement; observer effect; measurement effect; decoherence; entanglement; superposition; double-slit experiment; uncertainty principle; quantum mysticism; science communication; quantum computing License recommendation:CC BY 4.0 Suggested category tags:Physics; Quantum Mechanics; Science Communication; Foundations of Quantum Mechanics; Quantum Information