Process algebras have been developed within computer science and engineering to address complicated computational and manufacturing problems. The process algebra described herein was inspired by the Process Theory of Whitehead and the theory of combinatorial games, and it was developed to explicitly address issues particular to organisms, which exhibit generativity, becoming, emergence, transience, openness, contextuality, locality, and non-Kolmogorov probability as fundamental characteristics. These features are expressed by neurobehavioural regulatory systems, collective intelligence systems (social insect colonies), and quantum systems as well. The process algebra has been utilized to provide an ontological model of non-relativistic quantum mechanics with locally causal information flow. This paper provides a pedagical review of the mathematics of the process algebra.
Process algebras have been developed within computer science and engineering to address complicated computational and manufacturing problems. The process algebra described herein was inspired by the Process Theory of Whitehead and the theory of combinatorial games, and it was developed to explicitly address issues particular to organisms, which exhibit generativity, becoming, emergence, transience, openness, contextuality, locality, and non-Kolmogorov probability as fundamental characteristics. These features are expressed by neurobehavioural regulatory systems, collective intelligence systems (social insect colonies), and quantum systems as well. The process algebra has been utilized to provide an ontological model of non-relativistic quantum mechanics with locally causal information flow. This paper provides a pedagical review of the mathematics of the process algebra.
The process algebra approach to quantum mechanics posits a finite, discrete, determinate ontology of primitive events which are generated by processes (in the sense of Whitehead). In this ontology, primitive events serve as elements of an emergent space-time and of emergent fundamental particles and fields. Each process generates a set of primitive elements, using only local information, causally propagated as a discrete wave, forming a causal space termed a causal tapestry. Each causal tapestry forms a discrete and finite sampling of an emergent causal manifold (space-time) M and emergent wave function. Interactions between processes are described by a process algebra which possesses 8 commutative operations (sums and products) together with a non-commutative concatenation operator (transitions). The process algebra possesses a representation via nondeterministic combinatorial games. The process algebra connects to quantum mechanics through the set valued process and configuration space covering maps, which associate each causal tapestry with sets of wave functions over M . Probabilities emerge from interactions between processes. The process algebra model has been shown to reproduce many features of the theory of non-relativistic scalar particles to a high degree of accuracy, without paradox or divergences. This paper extends the approach to a semi-classical form of quantum electrodynamics.
The process algebra model has been suggested as an alternative mathematical framework for non-relativistic quantum mechanics (NRQM). It appears to reproduce the wave functions of non-relativistic quantum mechanics to a high degree of accuracy. It posits a fundamental level of finite, discrete events upon which the usual entities of NRQM supervene. It has been suggested that the process algebra model provides a true completion of NRQM, free of divergences and paradoxes, with causally local information propagation, contextuality, and realism. Arguments in support of these claims have been mathematical. Missing has been an ontology of this fundamental level from which the formalism naturally emerges. In this paper, it is argued that information and information flow provides this ontology. Higher level constructs such as energy, momentum, mass, spacetime, are all emergent from this fundamental level.
The classical-quantum dichotomy is analyzed from the perspective of the Process Algebra approach, which views fundamental phenomena through the lens of complex systems theory and Whitehead's process theory. Broadly, the dichotomy can be framed in terms of differences in ontology (phenomena and their behavior) and differences in epistemology (theoretical languages used in their description). The Process Algebra posits a reality, generated by processes, whose fundamental characteristics include becoming, generativity, transience, locality, and contextuality. From this perspective, the classical-quantum dichotomy appears to be a false dichotomy-it arises because of stereotyped, strawman-like depictions of what it means to be classical or quantum. A more careful examination reveals that reality is unitary, that whether a system behaves in a quantum or classical manner depends upon its particularities, in particular, whether it is complex or not, and how information flows govern its dynamics.
A process model of quantum mechanics utilizes a combinatorial game to generate a discrete and finite causal space upon which can be defined a self-consistent quantum mechanics. An emergent space-time and continuous wave function arise through a uniform interpolation process. Standard non-relativistic quantum mechanics (at least for integer spin particles) emerges under the limit of infinite information (the causal space grows to infinity) and infinitesimal scale (the separation between points goes to zero). This model is quasi-local, discontinuous, and quasi-non-contextual. The bridge between process and wave function is through the process covering map, which reveals that the standard wave function formalism lacks important dynamical information related to the generation of the causal space. Reformulating several classical conundrums such as wave particle duality, Schrodinger's cat, hidden variable results, the model offers potential resolutions to all, while retaining a high degree of locality and contextuality at the local level, yet nonlocality and contextuality at the emergent level. The model remains computationally powerful.
A process model of quantum mechanics utilizes a combinatorial game to generate a discrete and finite causal space, which can be defined as a self-consistent quantum mechanics. An emergent space-time and continuous wave function arise through a non-uniform interpolation process. Standard non-relativistic quantum mechanics emerges under the limit of infinite information (the causal space grows to infinity) and infinitesimal scale (the separation between points goes to zero). This model has the potential to address several paradoxes in quantum mechanics while remaining computationally powerful.
Reviewed by: Quantum Processes: A Whiteheadian Interpretation of Quantum Field Theory Henry J. Folse Quantum Processes: A Whiteheadian Interpretation of Quantum Field Theory. Frank Hättich . Munster: Agenda Verlag, 2004. xiv + 280 pp. Euro 29.90, pbk.3-89688-204-x. Many philosophers and physicists—including the current reviewer—have argued that Whitehead's process philosophy provides a conceptual framework better suited for understanding the quantum theoretical account of the atomic domain than does the substance ontology that has dominated Western metaphysics. However, apart from calling attention to this issue, few (with the notable exceptions of Henry Stapp and Jorge Nobo) have attempted to do anything about it. Frank Hättich has now changed this situation by providing a sustained analysis of quantum field theory (QFT) in terms of Whitehead's ontological scheme. The result is interesting for two reasons: (1) by extending the match between Whitehead's specific metaphysical proposals and the mathematics of algebraic QFT to a level of detail never before attempted, Hättich greatly strengthens the hope that process ontology can help resolve quantum mysteries; and (2) in noting the points of noncompatibility between QFT and Whitehead's metaphysical conclusions, he suggests ways of revising Whitehead's pioneering effort to enhance the match between speculative ontological scheme and contemporary physical theory. Hättich's book is in three unequal parts: the first two are exegetical, and the third, constituting nearly half the book, is synthetic. Part I presents a "simplified version" of those parts of Whitehead's ontology pertinent to the interpretation of QFT to be presented, and Part II presents an algebraic formulation of [End Page 283] QFT susceptible to that interpretation. Although Part I is "self-contained" from the point of view of its intended application, it is unlikely that a reader wholly ignorant of Whitehead's process ontology would gain enough enlightenment to appreciate much of the author's argumentation; but it is equally unlikely that such a person would be reading this book. Part II presumes considerable mathematical sophistication and familiarity with the formalism of at least quantum mechanics and some knowledge of field theory. It is "introductory" only in the sense that it introduces the particular version of QFT, algebraic QFT (AQFT), to which process ontology is to be applied. Of course, both Whitehead's metaphysics and quantum theory have been subjected to many and various rival interpretations, and in selecting among them Hättich has clearly, and reasonably, been led by choices that maximize the connections he wishes to explore. It is misleading to see the goal here as developing yet another argument for why quantum theory must (or must not) be interpreted realistically. Rather, this investigation presupposes a realist interpretation and then gets to work constructing an ontological framework to show how this is possible, thereby suggesting that those who have argued that a realist interpretation of quantum theory is conceptually impossible have done so because they remain committed to ontological presuppositions moored in classical physics. In presenting the ontological framework for his project in Part III, Hättich accounts for the process of each occasion's creative concrescence from pure potentiality to determined actuality in terms of three Whiteheadian concepts: (1) the extensive continuum; (2) eternal objects; and (3) the underlying activity. Each one of these ontological elements is then matched up with an aspect of the mathematical formalism by which AQFT represents the quantum state of a region in spacetime. Hättich then shows that given these identifications, various consequences of the mathematical formalism imply that some of the ontological claims made by Whitehead are either inconsistent or incompatible with the presumption that AQFT gives us a true account of the world. Thus although the final conclusions of this investigation are critical of Whitehead's specific metaphysical conclusions, the extent of the applicability of his ontological categories to quantum mechanics and QFT provides persuasive grounds for hoping that future realist interpretations of quantum theory can learn much from process metaphysics. For this reason, Hättich is to be commended for keeping the project of process ontology alive by proposing specific reasons for revising Whiteheadian conclusions based on our best scientific theories of the microdomain, rather than arguing...