Any finite-resolution description of a physical system incurs two costs: an information cost, quantifying microscopic complexity via relative entropy, and an ordering cost, quantifying geometric or structural organization. The Entropy–Order Balance (EOB) framework postulates that realized physical laws correspond to Lyapunov-stable equilibria of the total cost functional. Part I showed that the gravitational sector — Einstein's field equations and the cosmological constant — emerges as the stable ordering response. This paper shows that quantum mechanics emerges as the stable information response. Starting from the same five operational axioms applied to resolution windows with smooth Riemannian structure, supplemented by Lyapunov stability and two standard GPT-to-quantum hypotheses (reversible subgroup, local tomography/purification), the paper derives: State-space convexity from variational stability — a result that standard quantum reconstruction programs (Hardy 2001, Chiribella–D'Ariano–Perinotti 2011) assume as a postulate Hilbert space structure and completely positive trace-preserving (CPTP) dynamics Born rule probabilities from decision-theoretic stability over KL divergence Measurement as a barrier-dominance phenomenon: inter-sector transitions in the EOB functional are exponentially suppressed in apparatus size, producing effective state reduction without a collapse postulate A universal decoherence timescale τ_dec = d_S/c depending only on system dimension and the same constant c that determines Λ = cH₀² in Part I Pointer basis selection via Holevo quantity maximization Conditional extensions requiring additional AQFT inputs (Bisognano–Wichmann property, Haag–Kastler net structure) yield an area-law entropy exponent d = 2 and identification of the EOB balance scale with the Planck length. Part I (companion paper) derives Einstein's field equations and the cosmological constant from the same axiomatic framework.
Any finite-resolution description of a physical system incurs two costs: an information cost, quantifying microscopic complexity via relative entropy, and an ordering cost, quantifying geometric or structural organization. The Entropy–Order Balance (EOB) framework postulates that realized physical laws correspond to Lyapunov-stable equilibria of the total cost functional. Part I showed that the gravitational sector — Einstein's field equations and the cosmological constant — emerges as the stable ordering response. This paper shows that quantum mechanics emerges as the stable information response. Starting from the same five operational axioms applied to resolution windows with smooth Riemannian structure, supplemented by Lyapunov stability and two standard GPT-to-quantum hypotheses (reversible subgroup, local tomography/purification), the paper derives: State-space convexity from variational stability — a result that standard quantum reconstruction programs (Hardy 2001, Chiribella–D'Ariano–Perinotti 2011) assume as a postulate Hilbert space structure and completely positive trace-preserving (CPTP) dynamics Born rule probabilities from decision-theoretic stability over KL divergence Measurement as a barrier-dominance phenomenon: inter-sector transitions in the EOB functional are exponentially suppressed in apparatus size, producing effective state reduction without a collapse postulate A universal decoherence timescale τ_dec = d_S/c depending only on system dimension and the same constant c that determines Λ = cH₀² in Part I Pointer basis selection via Holevo quantity maximization Conditional extensions requiring additional AQFT inputs (Bisognano–Wichmann property, Haag–Kastler net structure) yield an area-law entropy exponent d = 2 and identification of the EOB balance scale with the Planck length. Part I (companion paper) derives Einstein's field equations and the cosmological constant from the same axiomatic framework.
This paper introduces the Total Entropic Quantity (TEQ) framework, a structural reformulation of quantum theory grounded in two foundational axioms. Axiom 0 posits entropy as a generative constraint: a geometric principle that determines which configurations can stably distinguish themselves, independent of space, time, or dynamics. Here, entropy is defined as a curvature-functional over distinguishability configurations, preserving only those patterns that remain stable under finite informational resolution---that is, structures not dissolved by coarse-graining or limited observability. Axiom 1, the Minimal Principle (MP), selects from these structures those that are maximally stable under entropy-weighted variation. From this entropic foundation, core elements of quantum theory---including the Born rule, quantization, and Schrödinger dynamics---emerge as special cases of entropy-stabilized geometry. The framework derives an entropy-weighted path integral and introduces a corrected Schrödinger equation that governs evolution in regimes of finite entropy curvature. In the high-resolution limit (β→∞), TEQ reduces to standard unitary quantum mechanics; in more general regimes, entropy flow deforms canonical dynamics, linking decoherence, dissipation, and gravitational curvature. TEQ reinterprets physical law as emergent structure within the geometry of distinguishability, rather than as imposed dynamics on a fixed spacetime background.
This paper introduces the Total Entropic Quantity (TEQ) framework, a structural reformulation of quantum theory grounded in two foundational axioms. Axiom 0 posits entropy as a generative constraint: a geometric principle that determines which configurations can stably distinguish themselves, independent of space, time, or dynamics. Here, entropy is defined as a curvature-functional over distinguishability configurations, preserving only those patterns that remain stable under finite informational resolution---that is, structures not dissolved by coarse-graining or limited observability. Axiom 1, the Minimal Principle (MP), selects from these structures those that are maximally stable under entropy-weighted variation. From this entropic foundation, core elements of quantum theory---including the Born rule, quantization, and Schrödinger dynamics---emerge as special cases of entropy-stabilized geometry. The framework derives an entropy-weighted path integral and introduces a corrected Schrödinger equation that governs evolution in regimes of finite entropy curvature. In the high-resolution limit (β→∞), TEQ reduces to standard unitary quantum mechanics; in more general regimes, entropy flow deforms canonical dynamics, linking decoherence, dissipation, and gravitational curvature. TEQ reinterprets physical law as emergent structure within the geometry of distinguishability, rather than as imposed dynamics on a fixed spacetime background.
The postulates of quantum mechanics — complex Hilbert space structure, unitary evolution, the Born rule, definite measurement outcomes, the canonical commutation relations, and the Pauli exclusion principle — have traditionally been taken as axioms. In this work we show that, within the framework of Modular Entropic Gravity (MEG), these structures admit a unified derivation from four geometric axioms governing the informational structure of the quantum vacuum.The framework is non-circular: its inputs are operator-algebraic structures of quantum field theory — including modular Hamiltonians, the JLMS identity, and the Bisognano–Wichmann theorem — which are defined independently of any probability interpretation. The probabilistic and dynamical rules of textbook quantum mechanics then arise as an infrared effective description of this underlying structure.The six results are obtained in logical order: (Q1) the emergence of complex structure from the entropion mass gap; (Q2) the L2 Hilbert space and Schrödinger equation from the long-wavelength limit of the vacuum propagator; (Q3) the Born rule from a relative entropy identity combined with the PLES–Petz correspondence; (Q4) definite measurement outcomes from PLES boundary conditions imposed by classical apparatus; (Q5) the canonical commutation relations from modular flow via the Bisognano–Wichmann and Araki reconstruction; and (Q6) the Pauli exclusion principle from the Z3 topological structure of the MEG vacuum.Three of these results (Q1, Q2, Q5) are established as complete theorems within the framework. The remaining three (Q3, Q4, Q6) are structurally complete derivations in which the underlying mechanism is fully identified, and any remaining conditions concern either formal infinite-dimensional extension or quantitative refinement.The paper therefore presents a coherent and non-circular programme in which the postulates of quantum mechanics are reconstructed from a smaller set of underlying principles, together with an explicit account of the remaining technical steps required for complete formalisation.
This paper introduces the Total Entropic Quantity (TEQ) framework, a structural reformulation of quantum theory grounded in two foundational axioms. Axiom 0 posits entropy as a generative constraint: a geometric principle that determines which configurations can stably distinguish themselves, independent of space, time, or dynamics. Here, entropy refers to a curvature-functional over distinguishability configurations, maintaining only those structural patterns that remain stable or well-posed under finite informational resolution—that is, structures that are not destroyed or dissolved by coarse-graining or limited observability. Axiom 1, the Minimal Principle (MP), selects from these configurations those that remain maximally resolvable under finite entropy resolution. From this entropic foundation, core features of quantum theory—including the Born rule, Schrödinger dynamics, quantization, and gravitational structure—emerge as consequences of variation within an entropy-curved geometry. TEQ unifies quantum coherence, classical emergence, and spacetime curvature under a single informational principle, replacing conventional postulates with entropy-stabilized structure. The framework predicts deviations in high-curvature regimes and reinterprets physical law as the geometry of distinguishability rather than imposed dynamics.
Standard quantum mechanics describes the evolution of physical systems through unitary Schr¨odinger dynamics, while decoherence and wavefunction collapse are introduced through additional postulates or environmental interactions. Although highly successful operationally, the theory does not provide a fundamental dynamical mechanism explaining the emergence of classical localization from microscopic evolution. n this work we propose an entropy-weighted causal dynamics framework, referred to as Quantum Causal Entropy (QCE), in which each microscopic causal transition contributes both a phase increment and an entropy cost. Starting from a local causal update rule, Ψ → eiθℓ−∆SℓΨ, we derive a modified evolution equation in which the standard Hamiltonian generator is supplemented by an entropy-production operator. The resulting entropy-corrected Schr¨odinger equation takes the form iℏ dΨ dt =H − iℏλSˆΨ, where Sˆ represents the entropy rate associated with microscopic causal processes and λ is an entropy coupling constant. We show that the standard unitary Schr¨odinger evolution is recovered in the limit of vanishing entropy coupling, while finite entropy production leads naturally to decoherence, interference suppression, and effective measurement localization without invoking an explicit collapse postulate. A corresponding density-matrix evolution equation is derived, providing a thermodynamic description of coherence decay. The framework therefore provides a dynamical link between quantum evolution, information entropy, and emergent classicality, and suggests experimentally testable corrections to coherence behavior in controlled quantum systems
This preprint presents a complete and fully operator-theoretic resolution of the quantum measurement problem. Including collapse, the Born rule, the uniqueness of outcomes, and the irrelevance of observersm derived entirely from a universal structural principle called the lawhood identity. Rather than adding new physics, modifying the Schrödinger equation, introducing hidden variables, invoking many-worlds branching, or appealing to consciousness, this work shows that quantum measurement is a direct, unavoidable consequence of a general fixed-point law that applies to all stable physical systems. When instantiated for quantum mechanics, this law forces every genuine superposition to fail the criteria for being a physically lawful state. Collapse is not an extra postulate: it is structurally mandatory. Key results include: • The No-Superposition Theorem: All superpositions are proven to be structurally unlawful; they cannot survive the measurement map.• Mandatory Collapse: Collapse emerges automatically from the composition of three physical operators (boundary, decoherence, and closure), without modifying quantum dynamics.• Derivation of the Born Rule: The familiar probabilities arise uniquely from the internal consistency of the measurement operators. No additional assumptions, decision theory, or symmetry arguments are required.• Observer Independence: Awareness and measurement are formally separated. Collapse is a physical, observer-independent process; knowledge acquisition is epistemic, not causal.• Uniqueness of Outcomes: The framework proves that there is only one stable classical outcome for any initial quantum state, directly resolving the many-worlds branching issue.• Experimental Signatures: The formulation predicts measurable relationships involving entropy, decoherence rates, and effective dimensionality. This paper shows that the puzzles of quantum collapse, superposition, outcome selection, probability, and the apparent role of observers, are not mysteries requiring new interpretations. They are the natural consequences of a deeper structural principle that governs all lawful physical systems. Quantum mechanics, under this lens, becomes a specific case of a universal operator identity that determines which states can persist as stable reality. Readers will find a complete, logically self-contained argument, with theorems and proofs written in a way that does not rely on philosophical interpretation or speculative assumptions. The result is a clear and testable framework that resolves a problem that has persisted since the birth of quantum theory. This work is part of a broader research program developing the universal Tier-0 lawhood framework and the “Everything Equation,” which unifies stability, collapse, and fixed-point structure across physics, computation, thermodynamics, and information. Relation to Tier-1 dynamical formulation: This work develops a law-level (structural) resolution of quantum measurement. A complementary Tier-1 dynamical realization of these structural principles, formulated entirely within a constrained operator framework and independent of law-level recursion language, is developed in: J. Rodgers, Saturation Geometry and the Structural Emergence of Measurement and the Born Rule in a Capacity-Constrained Dirac–Λ System, Zenodo (2026).https://doi.org/10.5281/zenodo.18704783 The Tier-1 formulation may be read independently and provides a concrete operator-theoretic instantiation of the structural mechanisms discussed here.