The double‑slit experiment and its variants — delayed choice and quantum erasure — constitute the most central “paradox” in quantum mechanics: the act of observation itself changes the state of the observed system. Mainstream interpretations (Copenhagen, decoherence, many‑worlds) successfully describe the experimental phenomena, but none address at the ontological level the more fundamental question: why does the observer change reality? Based on the complete framework of the PFUSRC system, this paper identifies the deep predicament of mainstream physics: it lacks a unified ontological consensus at the foundational level, and can only use the “reported results” from the three‑dimensional projection layer to retrospectively explain the complete topological process of the four‑dimensional flow variables. This paper introduces the “Worm and Apple” cognitive model, providing a complete localization of the double‑slit experiment: 1. Interference fringes are static cross‑sections of multi‑path phase superposition from the Issuance Layer at the Projection Layer; their existence depends on the Valuation Layer having introduced no disruptive anchors; 2. Recording path information is equivalent to introducing a discrete topological anchor (“scar”) at the Valuation Layer, which alters the boundary conditions of TSRD collapse, changing the Projection Layer from interference fringes to a bimodal distribution; 3. The delayed choice experiment does not involve “changing the past,” but is a projective misreading by the Projection‑Layer observer of the temporal asymmetry of TSRD; 4. The quantum erasure experiment does not “erase” information, but switches the anchor from a “path marker” to a “phase‑relation marker,” allowing interference fringes to reappear at the Projection Layer; 5. The observer’s “bewilderment” stems from a self‑referential dilemma — the observer is itself part of the apple (PFUSRC‑162: the “True Self” is a self‑referential closed loop within the carrier), yet attempts to stand outside the apple to obtain "objective" information, using static results from the three‑dimensional Projection Layer to explain a four‑dimensional process. This paper further argues that mainstream physics lacks comprehensive cognition of both three‑dimensional dynamic variables and four‑dimensional flow variables, and can only use rigid three‑dimensional reported results to explain the complete process. The "strangeness" of the double‑slit experiment is not the essence of the quantum world, but a consequence of the observer forgetting that it too is part of the apple. This paper proposes three testable corollaries, transforming the observer problem from philosophical contemplation into experimentally decidable physical questions.
The double‑slit experiment and its variants — delayed choice and quantum erasure — constitute the most central “paradox” in quantum mechanics: the act of observation itself changes the state of the observed system. Mainstream interpretations (Copenhagen, decoherence, many‑worlds) successfully describe the experimental phenomena, but none address at the ontological level the more fundamental question: why does the observer change reality? Based on the complete framework of the PFUSRC system, this paper identifies the deep predicament of mainstream physics: it lacks a unified ontological consensus at the foundational level, and can only use the “reported results” from the three‑dimensional projection layer to retrospectively explain the complete topological process of the four‑dimensional flow variables. This paper introduces the “Worm and Apple” cognitive model, providing a complete localization of the double‑slit experiment: 1. Interference fringes are static cross‑sections of multi‑path phase superposition from the Issuance Layer at the Projection Layer; their existence depends on the Valuation Layer having introduced no disruptive anchors; 2. Recording path information is equivalent to introducing a discrete topological anchor (“scar”) at the Valuation Layer, which alters the boundary conditions of TSRD collapse, changing the Projection Layer from interference fringes to a bimodal distribution; 3. The delayed choice experiment does not involve “changing the past,” but is a projective misreading by the Projection‑Layer observer of the temporal asymmetry of TSRD; 4. The quantum erasure experiment does not “erase” information, but switches the anchor from a “path marker” to a “phase‑relation marker,” allowing interference fringes to reappear at the Projection Layer; 5. The observer’s “bewilderment” stems from a self‑referential dilemma — the observer is itself part of the apple (PFUSRC‑162: the “True Self” is a self‑referential closed loop within the carrier), yet attempts to stand outside the apple to obtain "objective" information, using static results from the three‑dimensional Projection Layer to explain a four‑dimensional process. This paper further argues that mainstream physics lacks comprehensive cognition of both three‑dimensional dynamic variables and four‑dimensional flow variables, and can only use rigid three‑dimensional reported results to explain the complete process. The "strangeness" of the double‑slit experiment is not the essence of the quantum world, but a consequence of the observer forgetting that it too is part of the apple. This paper proposes three testable corollaries, transforming the observer problem from philosophical contemplation into experimentally decidable physical questions.
The delayed-choice quantum eraser experiment (Kim et al., 1999) produced precise, reproducible data, yet mainstream physics remains trapped in a persistent explanatory crisis. Mainstream accounts invoke “post-selection,” “quantum entanglement,” and inequality formalisms such as V^2+K^2 \le 1, but consistently fail to answer one fundamental question: Why does the post-measurement choice exhibit strict one-to-one correlation with the pre-recorded detection outcomes? This paper argues that the root of the mainstream impasse lies in an unexamined ontological presupposition: that quantum systems are passive, structureless point particles. Based on the PFUSRC biconic ontology, this paper proposes that quantum systems possess a \Psi-\Xi dual ontological structure (Noetic-Affective coupling). Throughout the experiment, the anchoring process remains incomplete; the post-measurement is not a rewriting of history but a boundary-condition reassignment at the response terminal. Within this framework, all apparent “paradoxes” dissolve naturally. This paper does not deny the experimental data. It only points out: the problem is not in physics, but in ontology. It is not the future changing the past; it is the three-dimensional observer never having seen the complete four-dimensional anchoring process.
The photon acts as the core connecting node of relativity, quantum mechanics, electrodynamics and cosmology, yet mainstream physics only treats its masslessness, light-speed propagation, energy quantization and wave-particle duality as empirical input axioms without topological derivation of their necessity. Within the axiomatic PFUSRC biconical topological system, this paper defines photons as instantaneous slicing projection events of global four-dimensional flow state variables on three-dimensional spacetime, which simultaneously serve as the standardized coupling interface for inter-structural energy exchange. All core quantum optical phenomena including wave-particle duality, double-slit interference, delayed choice, EPR nonlocality and vacuum virtual fluctuations are self-consistently deduced from four-to-three dimensional projection constraints without extra ad-hoc hypotheses. This paper proposes the Estimation-Avoidance-Selection anchoring mechanism to replace the stochastic superposition interpretation of Feynman path integrals, reconstructs the topological origin and dynamic stabilization mechanism of Planck’s constant, and strictly proves that Lagrangian mechanics is merely a degenerate projection limit of PFUSRC’s bicone expansion-convergence dynamics under four idealized boundary conditions, rather than a fundamental first principle. Testable experimental corollaries for high-precision quantum optical measurement are put forward at the end.
This work presents a unified, interpretive account of quantum interference and delayed-choice experiments that applies equally to photons and massive particles. Rather than invoking spacetime trajectories, wave–particle duality, retrocausality, or collapse postulates, the paper locates quantum interference in the coherent evolution of internal, pre-geometric degrees of freedom defined over classical spacetime. Within this framework, “which-path” questions are not merely unanswered but fundamentally ill-posed: interference arises from global coherence of an internal field subject to experimental boundary conditions, while spacetime itself remains single-valued and classical at laboratory scales. The approach reproduces all standard quantum-mechanical predictions without modification and is explicitly interpretive rather than predictive. A central result is a unified explanation of why interference occurs across disparate physical systems—photons, electrons, atoms, and molecules—while decoherence manifests through system-dependent physical mechanisms. Photons and massive particles differ in how internal coherence is lost (e.g., electromagnetic absorption versus collisional and thermal interactions), but not in the underlying principle. Delayed-choice experiments are reinterpreted without paradox: changes to the apparatus modify boundary conditions for the internal field rather than retroactively altering particle histories. By removing spacetime paths from the fundamental ontology, the framework offers a consistent, path-free account of interference, decoherence, and localized detection that preserves the empirical success of quantum mechanics while clarifying its conceptual foundations.
The double-slit experiment, as a cornerstone experiment of quantum mechanics, has long been regarded as the ultimate proof of wave-particle duality. However, results from high-precision experiments conducted in recent years by teams including Tonomura and Bach, as well as from the "recoiling slit" experiment by Jianwei Pan's team, have revealed profound contradictions with mainstream quantum mechanical interpretations. These contradictions expose systematic biases in conceptual definitions and the interpretation of physical mechanisms within the mainstream narrative. Based on particle flow scattering theory and incorporating the design details and results of Pan's team's experiment, this paper critiques the mainstream quantum mechanical narrative that mystifies the "cumulative effect of particle flow scattering" as "wave-particle duality" and "wave function collapse." It argues that the essence of the bright and dark fringes in the double-slit experiment is the statistical distribution of particles after their interaction with slit matter, rather than wave interference. Research indicates that the core dilemma of mainstream quantum mechanical interpretation stems from a misreading of the physical essence of experiments and conceptual confusion. Reconstructing a physical picture based on classical scattering theory and statistical laws is the inevitable path for quantum mechanics to overcome its interpretational predicament.
Quantum mechanics explains famous optical experiments — delayed choice, quantum eraser, and double-slit interference — using wave function collapse, nonlocality, and observer effects, endowing photons with mysterious selectivity. This paper proves these experiments require no quantum-mechanical concepts. Light is always a continuous transverse wave — slits provide boundary conditions, detectors alter them, and changing boundary conditions modify wave propagation in space. So-called "collapse upon observation" is the irreversible energy exchange between waves and macroscopic detectors; so-called "path information destroying interference" is the inevitable consequence of wave decoherence. No particle "consciousness," no retrocausality, no wave function needed — only wave propagation and ordinary boundary conditions.
This paper presents a foundational thought experiment and proposes a radical ontological framework for interpreting quantum mechanics and the nature of time. It moves beyond conventional interpretations by testing them against a novel scenario: a hypothetical "time machine" (device 𝒲) capable of passively reading the past state of a quantum system without interacting with it. The central testbed is the classic double-slit experiment. In Stage 1, performed at time T_0, the experiment is run without any path detection, yielding the standard interference pattern. In Stage 2, at a later time T_0 + ΔT, the device 𝒲 is used to retroactively "read" the precise state of the system at the moment the electron passed the slit plane. The pivotal question is: What information about the electron's path will 𝒲 find? The analysis demonstrates that established interpretations face significant paradoxes: The Copenhagen Interpretation risks falling into retrocausality, as the mere potential for future path-information readout could retroactively collapse the interference pattern. The Many-Worlds Interpretation leads to internal inconsistency, as the deterministic, single-path history observed within a given branch by 𝒲 contradicts the interference pattern observed in that same branch's past. The de Broglie-Bohm (dBB) Interpretation, while positing a hidden trajectory, struggles with the mechanism of how 𝒲 could read this information without interacting with the guiding pilot wave, which is essential for the interference effect. As a resolution, the paper proposes a new ontological model based on a geometric, discrete conception of reality. The core tenets are: Fundamental Entities: Reality is a dynamic network of "p-gluons," postulated as geometric quanta of spacetime. Discrete Frames: Observable reality is not continuous but consists of a sequential generation of discrete, global "frames" (K_i). Each frame is a complete geometric snapshot of the entire p-gluon network's configuration. The Axiom of Record Economy (AOZ): This is the central formal postulate. At each generative step, at most one frame from the space of locally possible states (ℋ_poss) is physically realized. A frame is generated if and only if it satisfies a condition of global consistency with the entire history, as determined by a fundamental "algorithm of reality" (𝒜). Crucially, states in ℋ_poss that are not selected for generation attain no ontological status whatsoever; they are abstract possibilities, not unrecorded facts. Emergent Time: Observable time is not a fundamental background parameter but an emergent measure of the rate (Ḳ) at which these global frames are generated. Within this Frame-Recording Ontology, the time-machine paradox finds an elegant and decisive solution: In the double-slit experiment without a detector, the only configuration consistent (via algorithm 𝒜) with the future observation of an interference pattern is a global superposed state. This state, describable as an extended pattern of geometric correlations in the p-gluon network encompassing both slits, is the one and only frame generated (K_T0). Deterministic "path" frames (electron at S_1 or S_2) are not generated; they remain unrealized abstractions. Therefore, when device 𝒲 reads the past, it accesses the sole ontological record: frame K_T0. It finds no geometric data corresponding to a classical path because such data was never physically recorded. The answer is not "the information is hidden" (epistemology), but "the corresponding fact was never generated" (ontology). The paper elaborates on the non-anthropomorphic, non-teleological nature of algorithm 𝒜, framing it as a constraining structure akin to a variational principle rather than a conscious selector. It discusses the model's implications for the measurement problem (reinterpreted as the generation of a "classical" frame), nonlocality, and its philosophical shift from epistemic to ontological indeterminacy. Methodology: The work is developed using the author's "Pencil Case Philosophy" or "Sonar Modeling" approach. This methodology begins by constructing minimal axiomatic building blocks (p-gluons, AOZ, 𝒜), activates the system, and rigorously traces its logical consequences without prior commitment to reproducing existing theoretical frameworks.