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Complexity, Entropy and the Physics of Information
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In this article, the authors discuss the connections between quantum and classical physics, information and its transfer, computation, and their significance for the formulation of physical theories, but also consider the origins and evolution of the information-processing entities, their complexity, and the manner in which they analyze their perceptions to form models of the Universe.Abstract:
This book has emerged from a meeting held during the week of May 29 to June 2, 1989, at St. John’s College in Santa Fe under the auspices of the Santa Fe Institute. The (approximately 40) official participants as well as equally numerous “groupies” were enticed to Santa Fe by the above “manifesto.” The book—like the “Complexity, Entropy and the Physics of Information” meeting explores not only the connections between quantum and classical physics, information and its transfer, computation, and their significance for the formulation of physical theories, but it also considers the origins and evolution of the information-processing entities, their complexity, and the manner in which they analyze their perceptions to form models of the Universe. As a result, the contributions can be divided into distinct sections only with some difficulty. Indeed, I regard this degree of overlapping as a measure of the success of the meeting. It signifies consensus about the important questions and on the anticipated answers: they presumably lie somewhere in the “border territory,” where information, physics, complexity, quantum, and computation all meet.read more
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Quantum mechanics, randomness, and deterministic reality☆
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The World as Evolving Information
TL;DR: The benefits of describing the world as information, especially in the study of the evolution of life and cognition, are discussed, so that evolution can be described consistently as information becoming more complex.
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Information Physics—Towards a New Conception of Physical Reality
TL;DR: The origin of the informational view of physics is described, some of the work inspired by this view is illustrated, and some indication of its implications for the development of a new conception of physical reality is given.
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Emergence of an effective two-dimensional quantum description from the study of critical phenomena in black holes.
TL;DR: An effective model for dealing with a coarse-grained black hole quantization is proposed and simple arguments that lead to a (first) quantization of the black hole mass in units of the Planck mass are given.
Journal ArticleDOI
Hypersensitivity to perturbation in the quantum kicked top.
Rüdiger Schack,Rüdiger Schack,Giacomo Mauro D'Ariano,Giacomo Mauro D'Ariano,Carlton M. Caves,Carlton M. Caves +5 more
TL;DR: Numerically the distribution of Hilbert-space vectors evolving in the presence of a small random perturbation is studied, thereby providing additional support for a characterization of quantum chaos that uses concepts from information theory.