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Wave Theory in Measure Space: From Choquet Capacities to Additive Measure Dynamics

Viktoras Rimsha, Laimontas Rimsha

Published Jul 11, 2026• 0 citations
Publisher

Abstract

This paper formulates a new framework for general wave theory designed to describe the intensity of interfering waves. Since traditional individual intensities (the squares of amplitude moduli) do not sum up to the total observed intensity during interference, classical measure theory in coordinate space breaks down. To resolve this non-additivity problem, we apply the concept of Choquet capacities, which has not been used in physics until now. It is postulated that the total observed intensity of the system is a global Choquet capacity, which simultaneously acts as a full, additive Lebesgue measure. The true intensities of individual waves are defined as additive Lebesgue measures that sum up to the total Choquet capacity. Utilizing the proportionality between the sought measures and the Choquet capacities of individual waves, analytical expressions for the true intensities are derived for an arbitrary number of alternatives. A temporal evolution via the Fokker-Planck equation is formulated for the obtained additive measures, which opens up avenues for a completely new wave analysis. In the context of quantum mechanics, these intensity-measures naturally acquire a probabilistic meaning, axiomatically resolving fundamental questions of interpretation.

DOI
10.5281/zenodo.21308519

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•Mar 1, 2019•2 citations
This paper formulates a new framework for general wave theory designed to describe the intensity of interfering waves. Since traditional individual intensities (the squares of amplitude moduli) do not sum up to the total observed intensity during interference, classical measure theory in coordinate space breaks down. To resolve this non-additivity problem, we apply the concept of Choquet capacities, which has not been used in physics until now. It is postulated that the total observed intensity of the system is a global Choquet capacity, which simultaneously acts as a full, additive Lebesgue measure. The true intensities of individual waves are defined as additive Lebesgue measures that sum up to the total Choquet capacity. Utilizing the proportionality between the sought measures and the Choquet capacities of individual waves, analytical expressions for the true intensities are derived for an arbitrary number of alternatives. A temporal evolution via the Fokker-Planck equation is formulated for the obtained additive measures, which opens up avenues for a completely new wave analysis. In the context of quantum mechanics, these intensity-measures naturally acquire a probabilistic meaning, axiomatically resolving fundamental questions of interpretation.
The classical paradigm of scientific reductionism relies on the assumption that the measure of a whole is constructed by summing the isolated properties of its parts from the bottom up. However, in systems where the parts are non-orthogonal (interacting, entangled, or contextual), this approach faces a structural crisis: the sum of local quantities does not coincide with the whole, forcing researchers to abandon additivity and resort to non-additive Choquet capacities. This paper introduces a new measure additivity paradigm based on top-down decomposition. Using the Riesz representation theorem, we demonstrate that strict additivity is always preserved if local measures are derived from a global conserved invariant (the Riesz measure) via quantitative proportional weights. We treat the superposition of states itself as a primal decomposition of the global state within a chosen context. The universality and mathematical robustness of this method are demonstrated in three distinct fields: quantum information (entanglement), anharmonic thermodynamics (energy kinetics), and artificial intelligence (decision-making theory). We show how this paradigm not only eliminates quantum and stochastic paradoxes but also establishes a universal temporal Fokker-Planck dynamics for non-stationary measures. This work proposes a fundamental paradigm shift in measure theory itself: transitioning from the classical Lebesgue volume-based measure constructed via the bottom-up summation of isolated parts, to a structural relationship-based measure rooted in the top-down decomposition of a global Riesz invariant. This new paradigm redefines a measure not as a static quantity of independent objects, but as a dynamic, context-sensitive, and strictly additive expression of systemic interconnectedness. Ultimately, this work represents a major evolution of Henri Lebesgue's foundational insight that universal descriptions of reality begin with the utilization of universal abstract quantities. By liberating the concept of the Lebesgue measure from the traditional summing of isolated objects and extending it to contextual, non-orthogonal systemic relations, this paradigm elevates measure theory into a rigorous, universal apparatus of mathematical philosophy.
The additivity of classical probabilities is only the first in a hierarchy of possible sum rules, each of which implies its successor. The first and most restrictive sum rule of the hierarchy yields measure theory in the Kolmogorov sense, which is appropriate physically for the description of stochastic processes such as Brownian motion. The next weaker sum rule defines a generalized measure theory which includes quantum mechanics as a special case. The fact that quantum probabilities can be expressed "as the squares of quantum amplitudes" is thus derived in a natural manner, and a series of natural generalizations of the quantum formalism is delineated. Conversely, the mathematical sense in which classical physics is a special case of quantum physics is clarified. The present paper presents these relationships in the context of a "realistic" interpretation of quantum mechanics.
Interference effects are usually observed by intensity measurement. Path indistinguishability by the quantum complementarity principle requires projection of the interfering fields into a common indistinguishable mode before detection. On the other hand, the essence of wave interference is the addition of amplitudes of the interfering fields. Therefore, if amplitudes can be directly measured and added, interference can occur even though the interfering fields are in well-distinguishable modes. Here, we make a comprehensive study in both theory and experiment of a technique by homodyne measurement of field amplitudes to reveal interference. This works for both classical and quantum fields even though there exists distinguishability in the interfering paths of light. This directly challenges the complementarity principle. We present a resolution of this issue from the viewpoint of measurement that emphasizes either particle or wave. This technique is particularly useful for recovering interference in unbalanced interferometers with path imbalance beyond a coherence length of the input field and can be applied to remote sensing to extend the applicable range. Since the amplitude-based interference phenomena studied here are fundamentally different from the traditional intensity-based interference phenomena, our approach leads to a new paradigm to study coherence between optical fields.
Considering the recently established arbitrariness the Schroedinger equation has to be interpreted as an equation of motion for a statistical ensemble of particles. The statistical qualities of individual particles derive from the unknown intrinsic energy components, they depend on the physical environment by way of external potentials. Due to these statistical qualities and wave function normalization, non-locality is inherent to the fundamental relations of Planck, de Broglie and Schroedinger. A local formulation of these statements is introduced and briefly assessed, the modified and local Schroedinger equation is non-linear. Quantum measurements are analyzed in detail, the exact interplay between causal and statistical reasons in a measurement process can be accounted for. Examples of individual measurement effects in quantum theory are given, the treatment of diffraction experiments, neutron interferences, quantum erasers, the quantum Zeno effect, and interaction-free measurements can be described consistent with the suggested framework. The paper additionally provides a strictly local and deterministic calculation of interactions in a magnetic field. The results suggest that quantum theory is a statistical formalism which derives its validity in measurements from considering every possible measurement of a given system. It can equally be established, that the framework of quantum physics is theoretically incomplete, because a justification of ensemble qualities is not provided.
In this thesis we will explore the development of a realist quantum theory based on the decoherence functional using the co-event interpretation of Quantum Measure Theory. The Sum-Over-Histories theory of quantum mechanics will provide the bedding for a Hilbert-space-free stochastic-like theory that can accommodate spacetime-like objects, and can therefore be applied to quantum gravity and cosmology, as well as give an alternative perspective on quantum phenomena. The primitive objects of the theory are histories, which give different accounts of a system’s evolution, and the decoherence functional, which sums the quantum interference between these histories. Quantum Measure Theory and Generalised Quantum Mechanics (a theory close to Decoherent Histories) then give alternative interpretations of the decoherence functional’s relation to reality. In these theories, the decoherence functional is mathematically constrained in analogue to probability measures. However, one of the conditions, called weak positivity, can be lost under composition of isolated systems. We will extend this composition argument to take the case for a stronger condition of strong positivity for decoherence functionals. The bulk of the report will then focus on the co-event interpretation of Quantum Measure Theory, where co-events give full accounts of which events do or do not occur for a given system. The quantum nature of reality is expressed through the breaking of classical logic within these co-event descriptions. We will focus on evolving co-event schemes, which dynamically construct co-events to describe the reality of an evolving system in tandem with its progression. The evolving co-event schemes will be shown to reproduce classical logic when they are applied to classical systems. Moreover, similar to classical stochastic theory, these schemes will be shown to be invariant under the inclusion or exclusion of non-interfering histories. We will also explore a number of outstanding problems for these schemes, and will propose some potential modifications.