This preprint is the second installment in a research program that develops a geometric ontic framework for finite-dimensional quantum theory. Paper I (“A Geometric Ontic Framework for Quantum States Based on SU(2) Symmetry and Non-Factorizable Projections”) introduced the kinematic layer of the theory: quantum states were represented as points on an underlying ontic manifold equipped with SU(2) symmetry, and standard single-particle quantum structure emerged from geometric projection rules. That first step reconstructed the full Hilbert-space picture for a single degree of freedom and identified how non-factorizable geometry underlies entanglement. The present paper extends this framework by introducing a dynamical layer. We postulate that the ontic metric G depends on the global configuration of the system, and we study its evolution under a general metric flow. Two principles guide this construction. The Quantum Equivalence Principle (QEP) requires reversible operational dynamics to preserve local distinguishability, recovering unitary evolution in symmetric limits. The Quantum Mach Principle (QMP) assigns dynamical content to the metric by allowing mild back-reaction from the ontic distribution. Together with a coarse-graining map RN(λ), these ingredients generate operational states and lead to an emergent Schrödinger-type dynamics. Standard quantum mechanics appears as the symmetric fixed point of the metric flow, while small departures from symmetry lead to controlled deviations from unitary evolution and the Born rule. This provides a geometric explanation for quantum kinematics and suggests testable signatures beyond the standard theory. This work lays the foundation for Paper III, where composite systems and curvature-induced entanglement dynamics are developed.
This preprint is the second installment in a research program that develops a geometric ontic framework for finite-dimensional quantum theory. Paper I (“A Geometric Ontic Framework for Quantum States Based on SU(2) Symmetry and Non-Factorizable Projections”) introduced the kinematic layer of the theory: quantum states were represented as points on an underlying ontic manifold equipped with SU(2) symmetry, and standard single-particle quantum structure emerged from geometric projection rules. That first step reconstructed the full Hilbert-space picture for a single degree of freedom and identified how non-factorizable geometry underlies entanglement. The present paper extends this framework by introducing a dynamical layer. We postulate that the ontic metric G depends on the global configuration of the system, and we study its evolution under a general metric flow. Two principles guide this construction. The Quantum Equivalence Principle (QEP) requires reversible operational dynamics to preserve local distinguishability, recovering unitary evolution in symmetric limits. The Quantum Mach Principle (QMP) assigns dynamical content to the metric by allowing mild back-reaction from the ontic distribution. Together with a coarse-graining map RN(λ), these ingredients generate operational states and lead to an emergent Schrödinger-type dynamics. Standard quantum mechanics appears as the symmetric fixed point of the metric flow, while small departures from symmetry lead to controlled deviations from unitary evolution and the Born rule. This provides a geometric explanation for quantum kinematics and suggests testable signatures beyond the standard theory. This work lays the foundation for Paper III, where composite systems and curvature-induced entanglement dynamics are developed.
We develop a geometric framework in which the operational structure of finite-dimensional quantum mechanics emerges from the dynamics of fields defined on an underlying ontic manifold. Two principles guide the construction. The Quantum Equivalence Principle (QEP) requires reversible dynamics to preserve local operational distinguishability in suitable “quantum inertial frames,” while the Quantum Mach Principle (QMP) assigns dynamical content to the ontic geometry by allowing the metric to depend on the global distribution of ontic configurations. For a single qubit, symmetry and minimality arguments identify \Omega = S^2 as the natural ontic manifold. In a symmetric regime—where the metric becomes homogeneous and backreaction is negligible—the induced operational state space inherits the round geometry of the Bloch sphere, and reversible flows act as its isometries. Standard unitary Schrödinger dynamics arise as an effective description without assuming Hilbert space structure at the fundamental level. For composite systems, non-factorizable components of the ontic metric generate intrinsic curvature on \Omega_A \times \Omega_B, which manifests operationally as entanglement. When symmetry is broken, the framework predicts deviations from standard quantum mechanics, including modified interference patterns, distortions of distinguishability, and effective non-unitarity. This work positions the familiar quantum formalism as a special high-symmetry phase of a broader geometric dynamical theory.
(This work presents an initial conceptual formulation of the renormalization-based approach to quantum theory within the TQF framework. A subsequent version 2 develops formulation of the Quantum reconstruction based on a linear state space, providing derivation of quantum-mechanical kinematics—including the emergence of the Hilbert space structure and the Born rule—from resolution independence. Readers primarily interested in the formal derivation are encouraged to consult the later versions, while the present work may be viewed as outlining the guiding ideas and initial physical intuition behind the quantum reconstruction.) The mathematical structure of quantum mechanics is traditionally introduced axiomatically, with the linearity of the state space, the Hilbert space structure, and the Born rule postulated independently. In this work, we investigate whether these features can instead emerge from a fundamental symmetry principle: the absence of a preferred scale, implemented as invariance ofphysical observables under coarse-graining transformations. We formulate a framework in which physical states are represented as functionals over configuration space and are subject to a family of coarse-graining transformations forming a renormalization group (RG) semigroup. Physical observables are required to be invariant under these transformations, while dynamical operators are allowed to transform covariantly withinthe induced RG flow. Under general consistency conditions—including associativity, symmetry, continuity, and invariance under refinement—we show that the admissible composition law of states admits an additive representation up to an invertible reparametrization, leading to a linear structure of the state space in reparametrized variables. Imposing consistency of weight assignments under coarse-graining further constrains the norm, selecting a quadratic form and inducing an inner product structure. As a result, the space of states acquires the structure of a complex Hilbert space without being postulated a priori. Within this framework, probability emerges as a measure induced by the state functional. By analyzing the transformation of weight assignments under coarse-graining, we identify an effective renormalization group flow in the space of admissible probability rules and show that the quadratic rule arises as a distinguished and heuristically stable fixed point. This provides adynamical origin for the Born rule. We further analyze the semiclassical regime, in which coarse-graining suppresses interference between configuration sectors, leading to decoherence and the emergence of effective classical behavior. In this limit, classical dynamics and an effective notion of time arise from the phase of the state functional, and an approximate Schr¨odinger equation is recovered for fluctuations. These results suggest that the core structural features of quantum mechanics can be understood as universal fixed-point properties of an underlying renormalization symmetry acting on the space of states. This perspective provides a conceptual bridge between quantum mechanics and scale-invariant quantum field theories, including the Timeless Quantum Field framework.
Quantum Mechanics as Reversible Closure Representation and the Emergence of Relativistic Structure (Paper 2) Abstract This work develops a representation-theoretic extension of the closure-first discrete gravity framework established in Reality is What Misspoken Language Cannot Deliver (Rev17). Starting from finite primitive state spaces and reversible closure algebra, we construct a unitary representation of the closure group on a complex Hilbert space. Quantum evolution arises naturally as the continuous representation of discrete reversible transitions, with phase structure determined by restoration periods. Defect transport within the closure algebra yields dispersion relations that recover relativistic propagation in the macroscopic limit. Local flatness emerges as the tangent limit of the discrete curvature substrate, giving Special Relativity as a local geometric approximation of the underlying simplicial structure. General Relativity appears as the coarse-grained curvature density of defect-labelled simplicial geometry, preserving the Einstein field equations within their established effective domain of validity. Quantum mechanics is therefore not postulated independently, but arises as the representation layer of reversible finite closure, while relativistic structure emerges from geometric coarse-graining of the same primitive algebra. No new macroscopic gravitational equations are introduced; the present work concerns the structural origin of existing relativistic frameworks rather than their modification. Introduction In the preceding work (Rev17), finite entropy bounds were shown to exclude primitive continuum ontology and to imply a finite state space for bounded physical regions. Under assumptions of deterministic closure, no primitive erasure, and inverse realisability, the reversible sector of primitive transitions forms a group. Defect labels associated with group elements define discrete curvature quanta, which embed naturally into a Regge-type geometric framework. A minimal continuum-limit argument yields the Einstein–Hilbert action under refinement. Importantly, this construction does not alter the Einstein field equations at macroscopic scales. General Relativity remains valid within its established regime as an effective continuum description. The prior work addresses the structural substrate from which that continuum description emerges. The present work extends this foundation by addressing two remaining structural questions: How does quantum mechanics arise from finite reversible closure? How does relativistic kinematics emerge from the same primitive structure? Rather than introducing Hilbert space or Lorentz symmetry axiomatically, we derive them as representation and coarse-graining layers of the previously established closure algebra. The guiding principle is minimal structural extension: no new primitive entities are introduced. All additional structure follows from representation consistency and macroscopic limit coherence. Quantum theory appears as the unitary representation of reversible closure; relativistic structure emerges as the geometric compression of defect-labelled algebra under scale separation. References[1] J. Bloggs, Aligning GR with Reality – Fully and Finally, Zenodo (2026). DOI: 10.5281/zenodo.18673556.[2] T. Regge, General relativity without coordinates, Nuovo Cimento 19 (1961) 558–571. DOI:10.1007/BF02733251.[3] J. W. Barrett, D. Oriti, and R. M. Williams, Tullio Regge’s legacy: Regge calculus and discrete gravity, arXiv:1812.06193 (2018). DOI: 10.48550/arXiv.1812.06193.[4] R. Loll, Discrete approaches to quantum gravity in four dimensions, Living Rev. Relativ. 1 (1998) 13. DOI: 10.12942/lrr-1998-13.[5] B. Dittrich and S. Steinhaus, Path integral measure and triangulation independence in discrete gravity, Phys. Rev. D 85 (2012) 044032. DOI: 10.1103/PhysRevD.85.044032.
In this thesis, we lay out the goal, and a broad outline, for a program that takes quantum mechanics in its minimal form to be the fundamental ontology of the universe. Everything else, including features like space-time, matter and gravity associated with classical reality, are emergent from these minimal quantum elements. We argue that the Hilbert space of quantum gravity is locally finite-dimensional, in sharp contrast to that of conventional field theory, which could have observable consequences for gravity. We also treat time and space on an equal footing in Hilbert space in a reparametrization invariant setting and show how symmetry transformations, both global and local, can be treated as unitary basis changes. Motivated by the finite-dimensional context, we use Generalized Pauli Operators as finite-dimensional conjugate variables and define a purely Hilbert space notion of locality based on the spread induced by conjugate operators which we call "Operator Collimation." We study deviations in the spectrum of physical theories, particularly the quantum harmonic oscillator, induced by finite-dimensional effects, and show that by including a black hole-based bound in a lattice field theory, the quantum contribution to the vacuum energy can be suppressed by multiple orders of magnitude. We then show how one can recover subsystem structure in Hilbert space which exhibits emergent quasi-classical dynamics. We explicitly connect classical features (such as pointer states of the system being relatively robust to entanglement production under environmental monitoring and the existence of approximately classical trajectories) with features of the Hamiltonian. We develop an in-principle algorithm based on extremization of an entropic quantity that can sift through different factorizations of Hilbert space to pick out the one with manifest classical dynamics. This discussion is then extended to include direct sum decompositions and their compatibility with Hamiltonian evolution. Following this, we study quantum coarse-graining and state-reduction maps in a broad context. In addition to developing a first-principle quantum coarse-graining algorithm based on principle component analysis, we construct more general state-reduction maps specified by a restricted set of observables which do not span the full algebra (as could be the case of limited access in a laboratory or in various situations in quantum gravity). We also present a general, not inherently numeric, algorithm for finding irreducible representations of matrix algebras. Throughout the thesis, we discuss implications of our work in the broader goal of understanding quantum gravity from minimal elements in quantum mechanics.
Quantum entanglement is a fundamental feature of quantum mechanics whose underlying physical interpretation remains an active topic of research. In this work, we develop a geometric framework in which physical states are defined on a higher-dimensional manifold, while observable states arise from a coherent projection onto spacetime. We show that this projection acts as a non-injective mapping on the underlying state space, generically transforming separable higher-dimensional states into non-factorizable states in the observable domain. Within this construction, quantum correlations emerge as a consequence of interference along a compact dimension. Under conditions of phase coherence, the standard quantum predictions are recovered. More generally, incomplete phase cancellation leads to a well-defined deviation from the usual correlation structure, introducing an additional angular dependence beyond the relative measurement settings. The framework is fully compatible with the standard quantum formalism at the effective level, while extending it through experimentally testable predictions. Moreover, the presence of such additional angular contributions provides a potential signature of projection-induced effects. These results suggest that quantum entanglement may be interpreted as an emergent phenomenon associated with geometric projection, in which effective nonlocal behavior arises from dimensional reduction.
This paper presents a structural reconstruction of the formal core of quantum mechanics fromthe properties of a bounded, linear, distinguishability-reducing projection acting on a generalfunctional space. Effective quantum states are identified with equivalence classes under theprojection ΠQM : H∗ → HQM and the Hilbert-space structure of HQM is induced by a positiveoperator K on the underlying space.Within this framework, the characteristic elements of quantum theory emerge as direct conse-quences of projection geometry and operator structure. Linearity yields superposition, quadraticnorms on equivalence classes give rise to the Born rule, non-factorizability leads to entangle-ment and commuting local algebras ensure no-signalling. Schrödinger-type unitary dynamicsarises from projection of symmetric generators, Dirac-type operators follow from algebraic com-patibility with Clifford structures and violations of classical Bell inequalities together with theTsirelson bound are enforced by operator-norm constraints in the projected C∗-algebra.No hidden variables are introduced and no modification of standard empirical quantummechanics is proposed. Rather than postulating the quantum formalism as axiomatic, theanalysis shows that its defining structures form a highly constrained and stable outcome oflinear projection, equivalence-class geometry, and norm-preserving dynamics.Rather than introducing new physical dynamics, the purpose of this work is to clarify why theestablished quantum formalism admits so little structural freedom once a small set of minimalrequirements is imposed.