This paper explores a possible bridge between quantum matter-wave phase and spacetime curvature. The conservative starting point is the established relation between relativistic action, proper time, and quantum phase: for massive matter, the accumulated phase is determined by the proper-time integral along a worldline. In curved spacetime, this makes matter-wave phase sensitive to the metric geometry. Building on this relation, the paper asks whether matter-wave phase may acquire additional curvature-dependent contributions beyond the standard proper-time action phase. Such a contribution would not replace quantum mechanics or general relativity. Instead, it would represent a controlled covariant correction that becomes physically meaningful only if it produces calculable and falsifiable deviations in matter-wave interferometry, precision clock comparisons, gravitational redshift tests, or related high-precision experiments. The central proposal is that quantum phase, proper time, and spacetime curvature may be linked through a deeper action-geometric structure. In this view, phase is not treated merely as a formal parameter on a fixed background, but as a possible probe of how matter samples spacetime geometry. The paper does not claim a completed theory of everything. It identifies a concrete research direction: new physics may appear as measurable curvature-dependent corrections to phase accumulation. This work is Part III of the series The Geometry of Phase. Parts I and II reconstructed quantum interference and de Broglie matter waves from a phase-first perspective within standard physics. The present paper extends that line of thought toward curvature-coupled matter-wave phase and possible experimentally testable deviations. This manuscript is intended as a conceptual and exploratory foundations paper. It separates established reconstruction from speculative extension and provides a mathematical starting point for future tests of curvature-coupled quantum phase.
This paper explores a possible bridge between quantum matter-wave phase and spacetime curvature. The conservative starting point is the established relation between relativistic action, proper time, and quantum phase: for massive matter, the accumulated phase is determined by the proper-time integral along a worldline. In curved spacetime, this makes matter-wave phase sensitive to the metric geometry. Building on this relation, the paper asks whether matter-wave phase may acquire additional curvature-dependent contributions beyond the standard proper-time action phase. Such a contribution would not replace quantum mechanics or general relativity. Instead, it would represent a controlled covariant correction that becomes physically meaningful only if it produces calculable and falsifiable deviations in matter-wave interferometry, precision clock comparisons, gravitational redshift tests, or related high-precision experiments. The central proposal is that quantum phase, proper time, and spacetime curvature may be linked through a deeper action-geometric structure. In this view, phase is not treated merely as a formal parameter on a fixed background, but as a possible probe of how matter samples spacetime geometry. The paper does not claim a completed theory of everything. It identifies a concrete research direction: new physics may appear as measurable curvature-dependent corrections to phase accumulation. This work is Part III of the series The Geometry of Phase. Parts I and II reconstructed quantum interference and de Broglie matter waves from a phase-first perspective within standard physics. The present paper extends that line of thought toward curvature-coupled matter-wave phase and possible experimentally testable deviations. This manuscript is intended as a conceptual and exploratory foundations paper. It separates established reconstruction from speculative extension and provides a mathematical starting point for future tests of curvature-coupled quantum phase.
This is Part II of the series The Geometry of Phase. It provides a strictly conservative, phase-geometric reconstruction of de Broglie matter waves from the invariant proper-time action of massive matter. No new physics is introduced. The central claim is that the de Broglie matter wave is the frame-dependent spatial expression of the invariant proper-time phase of massive matter. The paper serves as the clean bridge between the phase-first interference account of Part I and the exploratory curvature-coupled extensions of Part III. It remains deliberately conservative and identifies the proper-time action phase as the invariant core of massive matter-wave phase. Related works: Part I: Phase-First Quantum Interference (DOI: 10.5281/zenodo.20687982) Part III: Phase Meets Curvature (DOI: 10.5281/zenodo.20683956)
From Phase to Spacetime (Phase Ontology — Part II) develops the central consequence of Part I (Phase Without Ontology): if phase coherence is treated as an ontologically primary layer, then spacetime cannot be fundamental. This paper proposes a conceptual pathway by which temporal order, spatial geometry, and gravitational effects can be understood as emergent structures arising from stable phase relations—without introducing new dynamics or speculative entities. The core move is operational: clocks are oscillators, and what we call “time” is the comparison and synchronization of counted cycles across systems. Temporal order appears where phase relations are stable; divergence in clock rates appears where coherence conditions vary. In this framework, proper time corresponds to a system’s internal phase evolution, and relativistic phenomena (time dilation, gravitational redshift) are reinterpreted as changes in phase evolution induced by coherence gradients. Spatial distance and geometry are treated as doubly derivative: they are inferred through timing relations, synchronization procedures, and stable relational structure across extended systems. Uniform coherence yields an effectively “flat” geometry; varying coherence yields curvature-like behavior. The paper also sketches how inertia and acceleration can be viewed as resistance to reconfiguring phase-locked relations, aligning naturally with the equivalence principle. This work is Part II of a seven-part series that reframes foundational problems—unification, measurement, nonlocality, and the status of time—through the lens of phase coherence. Part III addresses measurement and classical definiteness; Part VII discusses experimental implications and falsifiability.
Inverted Relativistic Phase-Fluid Mechanics on Curved Spacetime introduces a covariant matter-phase model in which the phase field defines the local four-momentum, written in readable form as: p_mu = hbar * nabla_mu phi or equivalently: four-momentum = Planck constant × phase gradient The density n weights the conserved phase current and determines how strongly the phase flow contributes to the stress-energy tensor and therefore to spacetime curvature. In the minimal model, n has no independent gradient term. It acts as an algebraic density variable enforcing a relativistic Hamilton-Jacobi or mass-shell relation. This gives an inverted relativistic phase fluid: the phase determines motion, while the density weights its physical and gravitational effect. The model is then extended through the Madelung decomposition: psi = sqrt(n) * exp(i phi) This adds the amplitude-gradient term and produces the relativistic quantum-pressure contribution: Q_rel = - hbar^2 * Box(sqrt(n)) / sqrt(n) where Box is the covariant d’Alembert operator on curved spacetime. In this way, the minimal phase-fluid picture becomes connected to the full Klein-Gordon/Madelung quantum-fluid structure on curved spacetime. The paper provides a covariant bridge between: proper-time matter phase, de Broglie momentum-phase relations, relativistic fluid mechanics, Madelung quantum hydrodynamics, quantum pressure, stress-energy generation, and gravitational curvature. The model does not replace general relativity and does not claim to be a completed theory of quantum gravity. Instead, it formulates a compact theoretical framework in which matter phase, density, quantum amplitude structure and spacetime curvature are coupled without introducing a preferred reference frame. A compact summary of the construction is: The phase carries the motion, the density carries the weighting, the quantum pressure carries the wave nature, and the metric carries gravity. This preprint is intended as a theory note and starting point for further analytical and numerical work, including fixed-background simulations, weak gravitational backreaction, and full Einstein-Klein-Gordon/Madelung evolution.
Inverted Relativistic Phase-Fluid Mechanics on Curved Spacetime introduces a covariant matter-phase model in which the phase field defines the local four-momentum, written in readable form as: p_mu = hbar * nabla_mu phi or equivalently: four-momentum = Planck constant × phase gradient The density n weights the conserved phase current and determines how strongly the phase flow contributes to the stress-energy tensor and therefore to spacetime curvature. In the minimal model, n has no independent gradient term. It acts as an algebraic density variable enforcing a relativistic Hamilton-Jacobi or mass-shell relation. This gives an inverted relativistic phase fluid: the phase determines motion, while the density weights its physical and gravitational effect. The model is then extended through the Madelung decomposition: psi = sqrt(n) * exp(i phi) This adds the amplitude-gradient term and produces the relativistic quantum-pressure contribution: Q_rel = - hbar^2 * Box(sqrt(n)) / sqrt(n) where Box is the covariant d’Alembert operator on curved spacetime. In this way, the minimal phase-fluid picture becomes connected to the full Klein-Gordon/Madelung quantum-fluid structure on curved spacetime. The paper provides a covariant bridge between: proper-time matter phase, de Broglie momentum-phase relations, relativistic fluid mechanics, Madelung quantum hydrodynamics, quantum pressure, stress-energy generation, and gravitational curvature. The model does not replace general relativity and does not claim to be a completed theory of quantum gravity. Instead, it formulates a compact theoretical framework in which matter phase, density, quantum amplitude structure and spacetime curvature are coupled without introducing a preferred reference frame. A compact summary of the construction is: The phase carries the motion, the density carries the weighting, the quantum pressure carries the wave nature, and the metric carries gravity. This preprint is intended as a theory note and starting point for further analytical and numerical work, including fixed-background simulations, weak gravitational backreaction, and full Einstein-Klein-Gordon/Madelung evolution.
This paper develops a phase-first reconstruction of quantum interference within standard quantum mechanics and wave optics. Its central idea is that interference patterns become conceptually clearer when the complex phase is treated as the organizing structure and probability or intensity density is treated as the visible statistical expression of that structure. The guiding principle is: the phase structures the pattern; the density renders it visible. The paper shows how this principle applies to single-slit diffraction, double-slit interference, Airy patterns, Fourier optics, Fresnel propagation, probability current, the Madelung representation, which-way marking, reduced coherence, and quantum eraser experiments. In each case, the observed density pattern is interpreted as the visible result of coherent phase relations among amplitudes. The reconstruction is strictly conservative. It does not modify quantum mechanics, the Born rule, unitary dynamics, or standard wave optics. It introduces no new postulates and makes no new empirical prediction. Its purpose is conceptual and pedagogical: to clarify the architecture of quantum interference by placing relative phase at the center of the analysis. This work is Part I of the series The Geometry of Phase. It establishes the phase-geometric foundation for later parts of the series, where the same perspective is extended to de Broglie matter waves, proper-time phase, relativistic action, and possible curvature-coupled phase extensions.
In conventional quantum mechanics the trajectory of a matter wave is described implicitly by the phase of its wavefunction, yet no explicit geometric quantity has been associated with the propagation path itself. This paper introduces the concept of matter wave propagation curvature, denoted K_psi, as an intrinsic geometric measure of the bending of a quantum trajectory in configuration space. Unlike the curvature of space‑time employed in general relativity, K_psi depends solely on the wavefunction's phase structure and is independent of the underlying metric. We derive K_psi from the gradient of the phase of the wavefunction, show that it satisfies a conservation law along stationary paths, and discuss its relationship to the effective potential and external fields. The curvature framework predicts observable deviations in large‑mass interference experiments, suggesting a new route to probe the geometric nature of quantum states and to explore the possibility of a wavefunction‑based geometry. The potential to uncover a deeper layer of quantum reality is highlighted, pointing toward a Nobel‑potential discovery of wavefunction geometry.