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Routledge eBooks

Quantum metaphysics and the foundations of spacetime

Vincent Lam, Laurie Letertre, Cristian Mariani

Published Aug 8, 2022• 2 citations
Publisher

Abstract

The main research programs in quantum gravity tend to suggest in one way or another that most (if not all) spacetime structures are not fundamental. At the same time, work in quantum foundations highlights fundamental features that are in tension with any straightforward spacetime understanding. This paper aims to explore the little investigated but potentially fruitful links between these two fields.

DOI
10.4324/9781003219019-11

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The main research programs in quantum gravity tend to suggest in one way or another that most (if not all) spacetime structures are not fundamental. At the same time, work in quantum foundations highlights fundamental features that are in tension with any straightforward spacetime understanding. This paper aims to explore the little investigated but potentially fruitful links between these two fields.
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Much of the remainder of this book will concern itself with those aspects of theoretical physics which seek to understand the nature of matter. Such understanding as we have has mainly been achieved by probing the structure of successively smaller constituents and, at least on the face of things, the regions of space and time we need to consider are far too small for spacetime curvature to be of any signicance. Many of our considerations will therefore be restricted to Minkowski or, as in the present chapter, Galilean spacetime. Paradoxically, however, it seems that gravity and the structure of space and time may have a vital role to play in our understanding of matter on the very smallest scales, and we shall see something of the ways in which this comes about in later chapters.
Recent developments in quantum theory have focused attention on fundamental questions, in particular on whether it might be necessary to modify quantum mechanics to reconcile quantum gravity and general relativity. This book is based on a conference held in Oxford in the spring of 1984 to discuss quantum gravity. It brings together contributors who examine different aspects of the problem, including the experimental support for quantum mechanics, its strange and apparently paradoxical features, its underlying philosophy, and possible modifications to the theory.
Distributed Presence Research Program (DP) is an interdisciplinary foundational research program investigating whether physical reality can be more coherently understood in terms of distributed, relational, and phase-structured presence rather than as a collection of fundamentally isolated entities. The program explores the possibility that mass, charge, localization, probability, field structure, quantum behavior, and spacetime organization may be interpreted as emergent modes of response, stabilization, and relational configuration within a deeper ontology of distributed presence. A central aim of the program is to develop an ontological unity in physics by articulating a framework in which the interpretation of physical properties, the ontology of fields, the status of probability, and the conceptual foundations of quantum mechanics can be approached within a common relational structure. In particular, the DP Research Program addresses: the ontology of distributed presence, the emergence of localization, the reinterpretation of mass and charge, phase and response structures, the ontological interpretation of probability, the interpretation of quantum mechanics, spacetime emergence, and the search for ontological unity across physical theory. Rather than presenting itself as a completed physical theory, DP develops a conceptual and exploratory formal framework connecting philosophy of physics, metaphysics of science, quantum foundations, field-theoretic interpretation, and ontological modeling. The program aims to function as an open research platform for conceptual clarification, formal development, and interdisciplinary dialogue on the foundations and unity of physical reality.
This paper introduces the Theory of Emergent Metric Tension in Causality (TEMTC), grounded in the foundational registers of Meta-Para-Ontology, as an ontological framework for understanding the conceptual divide between quantum mechanics and general relativity. Rather than attempting a technical unification of the two theories, the approach reconsiders the ontological assumptions underlying them. It is argued that spacetime structure, gravitational dynamics, and the phenomena collectively described as quantum behavior should not be treated as fundamental features of reality, but as emergent expressions of a deeper level of causal organization. Within this framework, causality is conceived as a structured field of relational constraints whose internal tensions become observable as phenomena. Spacetime geometry expresses the stabilization of these causal relations, and gravity reflects variations in their density and organization. Space and time arise at the level of manifestation as relational forms through which causal organization becomes accessible to experience and observation. By situating both quantum mechanics and general relativity within a common ontological context, TEMTC provides a conceptual basis for understanding their incompatibility while preserving the integrity of each theory and requiring no additional physical postulates.