4 found
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  1.  14
    Weyl, Dirac and Maxwell Quantum Cellular Automata: Analitical Solutions and Phenomenological Predictions of the Quantum Cellular Automata Theory of Free Fields.Alessandro Bisio, Giacomo Mauro D’Ariano, Paolo Perinotti & Alessandro Tosini - 2015 - Foundations of Physics 45 (10):1203-1221.
    Recent advances on quantum foundations achieved the derivation of free quantum field theory from general principles, without referring to mechanical notions and relativistic invariance. From the aforementioned principles a quantum cellular automata theory follows, whose relativistic limit of small wave-vector provides the free dynamics of quantum field theory. The QCA theory can be regarded as an extended quantum field theory that describes in a unified way all scales ranging from an hypothetical discrete Planck scale up to the usual Fermi scale. (...)
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  2. Of Modern Physics.Giacomo Mauro D'Ariano & Alessandro Tosini - 2013 - Studies in History and Philosophy of Modern Physics 44:294-299.
  3.  17
    Free Quantum Field Theory From Quantum Cellular Automata: Derivation of Weyl, Dirac and Maxwell Quantum Cellular Automata.Alessandro Bisio, Giacomo Mauro D’Ariano, Paolo Perinotti & Alessandro Tosini - 2015 - Foundations of Physics 45 (10):1137-1152.
    After leading to a new axiomatic derivation of quantum theory, the new informational paradigm is entering the domain of quantum field theory, suggesting a quantum automata framework that can be regarded as an extension of quantum field theory to including an hypothetical Planck scale, and with the usual quantum field theory recovered in the relativistic limit of small wave-vectors. Being derived from simple principles, the automata theory is quantum ab-initio, and does not assume Lorentz covariance and mechanical notions. Being discrete (...)
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    Emergence of Space–Time From Topologically Homogeneous Causal Networks.Giacomo Mauro D'Ariano & Alessandro Tosini - 2013 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 44 (3):294-299.
    In this paper we study the emergence of Minkowski space–time from a discrete causal network representing a classical information flow. Differently from previous approaches, we require the network to be topologically homogeneous, so that the metric is derived from pure event-counting. Emergence from events has an operational motivation in requiring that every physical quantity—including space–time—be defined through precise measurement procedures. Topological homogeneity is a requirement for having space–time metric emergent from the pure topology of causal connections, whereas physically homogeneity corresponds (...)
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