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Young's Double-Slit Experiment Revisited: A Rigorous 5D Solitonic Interpretation

Alain Copinet, Noel COPINET

Published Oct 1, 2025• 0 citations
OpenAlex

Abstract

We revisit the MIT 2025 realization of Young's double-slit experiment with single-atom slits, by embedding it into the 5D Solitonic Theory (M 4 × S 1 with compact energy dimension e). Unlike the orthodox wave-particle duality interpretation, the 5D framework derives interference and which-way complementarity from deterministic geometric projections. We explicitly show how the visibility V and distinguishability D emerge from phase coherence along e, governed by solitonic equations introduced in the foundational corpus [1, 2, 3, 4, 5].

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•Apr 12, 2026•1 citation
We revisit the MIT 2025 realization of Young's double-slit experiment with single-atom slits, by embedding it into the 5D Solitonic Theory (M 4 × S 1 with compact energy dimension e). Unlike the orthodox wave-particle duality interpretation, the 5D framework derives interference and which-way complementarity from deterministic geometric projections. We explicitly show how the visibility V and distinguishability D emerge from phase coherence along e, governed by solitonic equations introduced in the foundational corpus [1, 2, 3, 4, 5].
This preprint presents a full numerical simulation of Peng-type optical interference experiments within the 5D Solitonic Geometric Framework.Using a unitary 5D FFT-based propagation equation derived from the complete 5D metric M5=R1,3×S1/Z6\mathcal{M}_5=\mathbb{R}^{1,3}\times S^1/Z_6M5​=R1,3×S1/Z6​, the model reproduces the double-slit, cross-double-slit, rotational, and obstacle geometries in qualitative agreement with Hui Peng’s experiments.The results confirm the compatibility between standard Fresnel optics and the 5D Solitonic Theory previously published on Zenodo, showing that observed interference patterns can be interpreted as geometric projections of a single deterministic 5D field.Future work will include explicit implementation of the Z6Z_6Z6​ potential and quantitative comparisons with experimental intensity profiles.
Abstract Young’s double slit experiments, which represent the mystery of quantum mechanics, have been interpreted by quantum probability waves and de Broglie-Bohm’s trajectory/pilot waves. To study in detail, the double slit experiments are extended to the cross double slit experiments. We argue that an interpretation must be able to explain all of the double slit and cross double slit experiments consistently. To test the interpretations, the comprehensive double slit experiments have been performed, which challenge both the wave interpretation and the trajectory interpretation. The cross double slit experiments and comprehensive double slit experiments provide a new tool for studying the mystery of double slit, wave-particle duality, complementarity principle, wave theory and trajectory theory. In this article, we review the cross double slit experiments and comprehensive double slit experiments, and report new experiments.
The single-quantum double-slit experiment is often taught through a compact narrative of localised detections, interference, and wave–particle duality that may conceal weak explanatory coordination. This qualitative-dominant mixed-methods study investigates how students and teachers distinguish description of the experimental outcome from recognition of its interpretative problem. The framework uses counterfactual model testing as an analytical lens for examining model–evidence coordination, together with epistemic framing, ontological flexibility, and multimodal representation. The study draws on 54 individually coded questionnaires from the “100 QM” course and six follow-up interviews. In this corpus, 48 participants (88.9%) adequately described the double-slit outcome, whereas 26 (48.1%) also articulated, in response to the questionnaire prompts, a specific explanatory tension or unresolved relation concerning the experimental outcome. Recurrent explanations invoked definite trajectories, literal wave–particle transformations, physicalised probability waves, appeals to self-interference, and anthropocentric observation. The findings indicate that descriptive familiarity and technical terminology do not by themselves ensure interpretative recognition. These findings reinforce the distinction between descriptive familiarity and interpretative understanding, showing that understanding the double-slit experiment involves not only descriptive adequacy, but also the recognition and examination of the explanatory tensions that emerge when proposed models are compared with the experimental evidence.
Complementarity lies at the heart of conceptual foundation of orthodox quantum mechanics. The wave-particle duality makes it impossible to tell which slit each particle passes through and still observe an interference pattern in a Young's double-slit experiment. In this paper, this duality is appraised under the standard formulation of quantum mechanics for atom interferometers. It is found that the internal freedoms like electronic states of an atom can be used to detect the which-path information of each atom while uphold the interference pattern of atoms when the center-of-mass motion of atoms is detected.
Young’s one-dimension-double-slit experiment represents the basic mystery of quantum world and was extended to which-way-1D-double-slit experiment. To explore the mystery, 2D-cross-double-slit apparatuses have been proposed, which consists of more than one double-slits intersecting to each other. In this article, we report which-way-2D-cross-double-slit experiments by detecting which slit of a double-slit of 2D-cross-double-slit apparatus a photon would pass through. The experimental results show that photons passing through the detected double-slit behave as particle, while photons passing through other undetected double-slit(s) distribute as wave in the same experiment with the same apparatus. Namely the particle nature and wave distribution coexist, which violates Bohr’s complementarity principle. We suggest that photon’s “particle nature” is intrinsic, while the term “wave nature” represents a wave-like distribution, which is a consequence of movement of photon as particle. It is a challenge to interpret mathematically those observations consistently.
This preprint develops a unified conceptual interpretation of quantum entanglement, wave–particle duality, and the double-slit experiment within the OIT (On Information and Time) framework. Building on OIT-SIM (A Spacelike 5D Informational Metric) and OIT-TISIM (Thermodynamics and Information in a Spacelike 5D Informational Metric), the paper proposes that these phenomena can be understood in terms of a global 5D relational configuration defined in an extended informational manifold with coordinates (t,x,y,z,I). In this view, Entanglement corresponds to informational coherence between distinct particles, while Wave–Particle Duality and the Double-Slit Experiment correspond to informational coherence between alternative trajectories of a single particle. Observation is interpreted as a branch-selection process that resolves the pre-existing 5D structure into definite 4D outcomes. The work is conceptual and interpretive: it does not claim to replace standard quantum mechanics or to derive its formalism, but to show that the 5D-IM framework may provide a geometric perspective on quantum correlations that does not rely on local hidden variables, while remaining compatible with no-signalling and relativistic causality. https://orcid.org/ - 0009-0002-3646-1493