The Fabric of Reality: the Science of Parallel Universes-- and Its Implications Pdf, Epub, Ebook
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Many Worlds Model Resolving the Einstein Podolsky Rosen Paradox Via a Direct Realism to Modal Realism Transition That Preserves Einstein Locality
Many Worlds Model resolving the Einstein Podolsky Rosen paradox via a Direct Realism to Modal Realism Transition that preserves Einstein Locality Sascha Vongehr †,†† †Department of Philosophy, Nanjing University †† National Laboratory of Solid-State Microstructures, Thin-film and Nano-metals Laboratory, Nanjing University Hankou Lu 22, Nanjing 210093, P. R. China The violation of Bell inequalities by quantum physical experiments disproves all relativistic micro causal, classically real models, short Local Realistic Models (LRM). Non-locality, the infamous “spooky interaction at a distance” (A. Einstein), is already sufficiently ‘unreal’ to motivate modifying the “realistic” in “local realistic”. This has led to many worlds and finally many minds interpretations. We introduce a simple many world model that resolves the Einstein Podolsky Rosen paradox. The model starts out as a classical LRM, thus clarifying that the many worlds concept alone does not imply quantum physics. Some of the desired ‘non-locality’, e.g. anti-correlation at equal measurement angles, is already present, but Bell’s inequality can of course not be violated. A single and natural step turns this LRM into a quantum model predicting the correct probabilities. Intriguingly, the crucial step does obviously not modify locality but instead reality: What before could have still been a direct realism turns into modal realism. This supports the trend away from the focus on non-locality in quantum mechanics towards a mature structural realism that preserves micro causality. Keywords: Many Worlds Interpretation; Many Minds Interpretation; Einstein Podolsky Rosen Paradox; Everett Relativity; Modal Realism; Non-Locality PACS: 03.65. Ud 1 1 Introduction: Quantum Physics and Different Realisms ............................................................... -
Many Worlds? an Introduction Simon Saunders
Many Worlds? An Introduction Simon Saunders Introduction to Many Worlds? Everett, quantum theory, and reality, S. Saun- ders, J. Barrett, A. Kent, D. Wallace (eds.), Oxford University Press (2010). This problem of getting the interpretation proved to be rather more difficult than just working out the equation. P.A.M. Dirac Ask not if quantum mechanics is true, ask rather what the theory implies. What does realism about the quantum state imply? What follows then, when quantum theory is applied without restriction, if need be to the whole universe? This is the question this book addresses. The answers vary widely. Ac- cording to one view, `what follows' is a detailed and realistic picture of reality that provides a unified description of micro- and macroworlds. But according to another, the result is nonsense { there is no physically meaningful theory at all, or not in the sense of a realist theory, a theory supposed to give an intel- ligible picture of a reality existing independently of our thoughts and beliefs. According to the latter view, the formalism of quantum mechanics, if applied unrestrictedly, is at best a fragment of such a theory, in need of substantive additional assumptions and equations. So sharp a division about what appears to be a reasonably well-defined question is all the more striking given how much agreement there is otherwise. For all parties to the debate in this book are agreed on realism, and on the need, or the aspiration, for a theory that unites micro- and macroworlds. They all see it as legitimate { obligatory even { to ask whether the fundamental equations of quantum mechanics, principally the Schr¨odingerequation, already constitute such a system. -
The Structure of the Multiverse David Deutsch
The Structure of the Multiverse David Deutsch Centre for Quantum Computation The Clarendon Laboratory University of Oxford, Oxford OX1 3PU, UK April 2001 Keywords: multiverse, parallel universes, quantum information, quantum computation, Heisenberg picture. The structure of the multiverse is determined by information flow. 1. Introduction The idea that quantum theory is a true description of physical reality led Everett (1957) and many subsequent investigators (e.g. DeWitt and Graham 1973, Deutsch 1985, 1997) to explain quantum-mechanical phenomena in terms of the simultaneous existence of parallel universes or histories. Similarly I and others have explained the power of quantum computation in terms of ‘quantum parallelism’ (many classical computations occurring in parallel). However, if reality – which in this context is called the multiverse – is indeed literally quantum-mechanical, then it must have a great deal more structure than merely a collection of entities each resembling the universe of classical physics. For one thing, elements of such a collection would indeed be ‘parallel’: they would have no effect on each other, and would therefore not exhibit quantum interference. For another, a ‘universe’ is a global construct – say, the whole of space and its contents at a given time – but since quantum interactions are local, it must in the first instance be local physical systems, such as qubits, measuring instruments and observers, that are split into multiple copies, and this multiplicity must propagate across the multiverse at subluminal speeds. And for another, the Hilbert space structure of quantum states provides an infinity of ways David Deutsch The Structure of the Multiverse of slicing up the multiverse into ‘universes’, each way corresponding to a choice of basis. -
Physics of Immortality: Death and Eternal Life in Frank Tipler and Robert Lanza’S Theories
Funes. Journal of narratives and social sciences 2018 | Vol. 2 The (meta)physics of immortality: Death and eternal life in Frank Tipler and Robert Lanza’s theories Roberto Paura Università degli Studi di Perugia Abstract In an age when the explanatory and consolatory narratives of religion about death seem to lose their appeal, referring to scientific backgrounds to develop new theories about life after death seems an effective alternative. A demonstration of this assumption is given by the success of theoretical physicist Frank J. Tipler’s books The Physics of Immortality (1994) and The Physics of Christianity (2007), and of the ones by famous physician Robert Lanza (in collaboration with the astronomer Bob Berman) Biocentrism (2009) and Beyond Biocentrism (2016). Both Tipler’s Omega Point theory and Lanza’s Biocentricism are based on particular interpretations of the concepts underlying the so-called “new physics”, in particular quantum physics, the physics of time, and the cosmological anthropic principle. These two theories attribute a decisive role to the consciousness and thus to intelligent life in the construction of reality, proposing the hypothesis that life is destined to last forever. This implies that the individual consciousness of every human being, after death, should persist in other forms and contribute to the evolution of the universe. Keywords: death, physics, immortality, Biocentrism, Omega Point theory Foreword At the very basis of the modern conception of scientific knowledge lies the separation between the domain of the knowledge acquired through the scientific method and those that pertain to metaphysical conceptions: the rise of a scientific community capable of developing theories independently from any metaphysical backgrounds marks the transition from natural philosophy to science1. -
Quantum Mechanics, Objective Reality, and the Problem of Consciousness
Quantum mechanics, objective reality, and the problem of consciousness Ranjan Mukhopadhyay Department of Physics, Clark University, Worcester, MA 01610. Email: [email protected] April 11, 2018 Abstract The hard problem in consciousness is the problem of understanding how physical processes in the brain could give rise to subjective conscious experience. In this paper, I suggest that in order to understand the relationship between consciousness and the physical world, we need to probe deeply into the nature of physical reality. This leads us to quantum physics and to a second explanatory gap: that between quantum and classical reality. I will seek a philosophical framework that can address these two gaps simultaneously. Our analysis of quantum mechanics will naturally lead us to the notion of a hidden reality and to the postulate that consciousness is an integral component of this reality. The framework proposed in the paper provides the philosophical under- pinnings for a theory of consciousness while satisfactorily resolving the interpretation problem in quantum mechanics without the need to alter its mathematical structure. I also discuss some implications for a scientific theory of consciousness. 1 Introduction At the heart of our scientific endeavor to understand the world, exist two explanatory gaps relating to the nature of reality and of consciousness. The first, better known, gap concerns the relation between subjective conscious experience and physical neurological processes in arXiv:1804.03606v1 [physics.hist-ph] 10 Apr 2018 the brain. The relationship between the quantum micro-world and the classical world that we experience constitutes the second gap. As I will discuss, these explanatory gaps appear to be fundamental and pose a barrier to our understanding of the nature of the world and our place in it. -
BEYOND REWARD and PUNISHMENT David Deutsch
The most significant developments in the sciences today (i.e., those that affect the lives of everybody on the planet) are about, informed by, or implemented through advances in software and computation. Central to the future of these developments is physicist David Deutsch, the founder of the field of quantum computation, whose 1985 paper on universal quantum computers was the first full treatment of the subject; the Deutsch-Jozsa algorithm was the first quantum algorithm to demonstrate the enormous potential power of quantum computation. When he initially proposed it, quantum computation seemed practically impossible. But the explosion in the construction of simple quantum computers and quantum communication systems never would have taken place without his worK. He has made many other important contributions in areas such as quantum cryptography and the many-worlds interpretation of quantum theory. In a philosophic paper (with Artur EKert), he appealed to the existence of a distinctive quantum theory of computation to argue that our knowledge of mathematics is derived from, and subordinate to, our knowledge of physics (even though mathematical truth is independent of physics). Because he has spent a good part of his worKing life changing people’s worldviews, his recognition among his peers as an intellectual goes well beyond his scientific achievement. He argues (following Karl Popper) that scientific theories are “bold conjectures,” not derived from evidence but only tested by it. His two main lines of research at the moment—qubit-field theory and constructor theory—may well yield important extensions of the computational idea. In the following essay, he more or less aligns himself with those who see human-level artificial intelligence as promising us a better world rather than the Apocalypse. -
The Physical World As a Virtual Reality
Brian Whitworth The emergence of the physical world from information processing Brian Whitworth Massey University, Albany, New Zealand email: [email protected] Not only is the universe stranger than we imagine, it is stranger than we can imagine Sir Arthur Eddington ABSTRACT This paper links the conjecture that the physical world is a virtual reality to the findings of modern physics. What is usually the subject of science fiction is here proposed as a scientific theory open to empirical evaluation. We know from physics how the world behaves, and from computing how information behaves, so whether the physical world arises from ongoing information processing is a question science can evaluate. A prima facie case for the virtual reality conjecture is presented. If a photon is a pixel on a multi-dimensional grid that gives rise to space, the speed of light could reflect its refresh rate. If mass, charge and energy all arise from processing, the many conservation laws of physics could reduce to a single law of dynamic information conservation. If the universe is a virtual reality, then its big bang creation could be simply when the system was booted up. Deriving core physics from information processing could reconcile relativity and quantum theory, with the former how processing creates the space-time operating system and the latter how it creates energy and matter applications. 1. Introduction We know that processing can create virtual worlds with their own time, space and objects1, but that the physical world arises this way is normally a topic of science fiction not physics. -
The Validity of the Scientific Method in Modern Physics
ISSN 2303-4521 PERIODICALS OF ENGINEERING AND NATURAL SCIENCES Vol. 2 No. 2 (2014) Available online at: http://pen.ius.edu.ba The validity of the scientific method in modern physics Mohamed E Yahia 1, Ali GURSEL 2 1 International University of Sarajevo, Sarajevo, Bosnia and Herzegovina 2 Düzce University, Düzce, TURKEY Abstract The scientific method is described clearly for the first time at Kitab al-Manazir (Book of Optics) of Ibn al-Haytham (Alhazen 965 – 1040). But recently there is some debate regarding its validity of theories describing our universe like string theory and multiverse. It is well known that scientific method paved the way for true science and technology through more than thousand years ago. We argue here that, scientific method should remain to be the only way to get and verify natural sciences. Keywords: scientific method, String theory, multiverse, Universe. As the scientific method commonly defined, this is the The feature associated with approach to investigating phenomena, acquiring new Alhazen's (Fig. 1) researches is knowledge, or correcting and integrating previous related to systemic and knowledge, based on the gathering of data through 1040) - methodological reliance on observation and measurement, followed by the experimentation and controlled formulation and testing of hypotheses to explain the data. testing in his scientific But the development and elaboration of rules for Alhazen (965 Alhazen inquiries. Furthermore, his experimental directives rested scientific reasoning and investigation has not been on combining classical physics straightforward; scientific method has been the subject of Figure 1: Figure with mathematics. This intense and recurring debate throughout the history of mathematical physical science, and many eminent natural philosophers and approach to experimental scientists have argued for the primacy of one or another science supported most of his approach to establishing scientific knowledge. -
The Hidden Reality Parallel Universes and the Deep Laws of the Cosmos / by Brian Greene.—1St Ed
ALSO BY BRIAN GREENE Icarus at the Edge of Time The Fabric of the Cosmos The Elegant Universe THIS IS A BORZOI BOOK PUBLISHED BY ALFRED A. KNOPF Copyright © 2011 Brian Greene All rights reserved. Published in the United States by Alfred A. Knopf, a division of Random House, Inc., New York, and in Canada by Random House of Canada Limited, Toronto. www.aaknopf.com Knopf, Borzoi Books, and the colophon are registered trademarks of Random House, Inc. Library of Congress Cataloging-in-Publication Data Greene, B. (Brian), [date] The hidden reality parallel universes and the deep laws of the cosmos / by Brian Greene.—1st ed. p. cm. eISBN: 978-0-307-59525-6 1. Physics—Philosophy. 2. Quantum theory. 3. General relativity (Physics) 4. Cosmology. I. Title. QC6.G6885 2011 530.12—dc22 2010042710 Jacket design by Peter Mendelsund v3.1 To Alec and Sophia Contents 1. The Bounds of Reality On Parallel Worlds 2. Endless Doppelgängers The Quilted Multiverse 3. Eternity and Infinity The Inflationary Multiverse 4. Unifying Nature’s Laws On the Road to String Theory 5. Hovering Universes in Nearby Dimensions The Brane and Cyclic Multiverses 6. New Thinking About an Old Constant The Landscape Multiverse 7. Science and the Multiverse On Inference, Explanation, and Prediction 8. The Many Worlds of Quantum Measurement The Quantum Multiverse 9. Black Holes and Holograms The Holographic Multiverse 10. Universes, Computers, and Mathematical Reality The Simulated and Ultimate Multiverses 11. The Limits of Inquiry Multiverses and the Future Notes Suggestions for Further Reading About the Author Preface If there was any doubt at the turn of the twentieth century, by the turn of the twenty-first, it was a foregone conclusion: when it comes to revealing the true nature of reality, common experience is deceptive. -
Parallel Universes
To appear in Science and Ultimate Reality: From Quantum to Cosmos, honoring John Wheeler's 90th birthday, J.D. Barrow, P.C.W. Davies, & C.L. Harper eds., Cambridge University Press (2003) Parallel Universes Max Tegmark Dept. of Physics, Univ. of Pennsylvania, Philadelphia, PA 19104; [email protected] (January 23 2003.) Abstract: I survey physics theories involving parallel universes, which form a natural four-level hierarchy of multiverses allowing progressively greater diversity. Level I: A generic prediction of inflation is an infinite ergodic universe, which contains Hubble volumes realizing all initial conditions 29 | including an identical copy of you about 1010 m away. Level II: In chaotic inflation, other thermalized regions may have different physical constants, dimensionality and particle content. Level III: In unitary quantum mechanics, other branches of the wavefunction add nothing qualitatively new, which is ironic given that this level has historically been the most controversial. Level IV: Other mathematical structures give different fundamental equations of physics. The key question is not whether parallel universes exist (Level I is the uncontroversial cosmological concordance model), but how many levels there are. I discuss how multiverse models can be falsified and argue that there is a severe \measure problem" that must be solved to make testable predictions at levels II-IV. Is there another copy of you reading this article, decid- of this radius defines our observable universe, also called ing to put it aside without finishing this sentence while our Hubble volume, our horizon volume or simply our you are reading on? A person living on a planet called universe. -
Making Sense of the Many Worlds Interpretation
Making Sense of the Many Worlds Interpretation Stephen Boughn1 Department of Physics, Princeton University and Departments of Astronomy and Physics, Haverford College Contents Preface …………………………………………………………………. 1 1. In the Beginning ………………………………………………………… 2 2. The Wave Function of the Universe …………………………................. 4 3. Relative States ………………………………………………………….. 9 4. The Correspondence of Quantum Theory with Experience ……………. 15 5. Emergence of the “Classical World” …………………………………... 17 6. Challenging Many Worlds ……………………………………………... 19 7. Final Remarks and a Confession ………………………………………. 28 8. References …………………………………………………………........ 33 Preface It has been 61 years since Hugh Everett III’s PhD dissertation, On the Foundations of Quantum Mechanics, was submitted to the Princeton University Physics Department. After more than a decade of relative obscurity it was resurrected by Bryce DeWitt as The Many Worlds Interpretation of Quantum Mechanics and since then has become an active topic of discussion, reinterpretation, and modification, especially among philosophers of science, quantum cosmologists, and advocates of quantum decoherence and quantum computing. Many of these analyses are quite sophisticated and considered to be important contributions to physics and philosophy. I am primarily an experimental physicist and my pragmatic ruminations on the subject might be viewed with some suspicion. Indeed, Bohr’s pragmatic Copenhagen Interpretation is often disparaged by this same cohort. Still, I think that my experimentalist’s vantage point has something to offer and I here offer it to you. I gratefully acknowledge the inspiration I have drawn from Freeman Dyson and Marcel Reginatto; although, of course, they deserve no blame whatsoever for any foolish proclamations I might have made. 1 [email protected] 2 1. IN THE BEGINNING …. I was beginning my second year of graduate school when Bryce DeWitt’s article (DeWitt 1970), “Quantum mechanics and reality”, appeared in Physics Today. -
What Does Constructor Theory Construct?: Knowledge As a Physical Property
WHAT DOES CONSTRUCTOR THEORY CONSTRUCT?: KNOWLEDGE AS A PHYSICAL PROPERTY Aleksandar Malecic Faculty of Electronic Engineering University of Nis, Serbia [email protected] ABSTRACT “Constructor theory of eigenbehavior” is the most appropriate short way to describe what this paper is about. To those who have encountered the idea of eigenbehavior for the first time through this text, let’s say that it is related to recursions within and emergence of consciousness and information in general (Füllsack, 2016). In a back and forth manner between constructor theory of possible tasks (Deutsch, 2012) and eigenbehavior as a viable (since it passes the test of existence; Josephson, 2012) phenomenon, we shall try to tell something about the fabric of reality (Deutsch, 1998). This author uses in an already published paper (Malecic, 2016) the metaphor of systems as footprints and wonders what kind of “animal” (constructor) might leave them behind. This text goes further in combining and criticizing Deutsch and Marletto’s work with the concept of eigenbehavior. Interpretations of quantum mechanics and physical principles are also elaborated. Key Words – anticipation, autopoiesis, self-awareness, universal constructor, determinism INTRODUCTION Causation, the arrow of time, consciousness, and computability cannot be resolved only by additional empirical studies. The problem is unresolved if scientists add conscious entities as an afterthought and refuse a systems perspective and transdisciplinarity. How to use the systems perspective in order to gain insights not possible by any other approach? Where do physical principles (vs. subsidiary theories) come from? How to set an agreement (collective eigenbehavior) about conclusions? Different ideas are compared through the systems perspective in order to support those that unify and criticize those that do not unify.