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The Probability Puzzle

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0006
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

This chapter begins my discussion of probability — generally held to be the most severe difficulty for the Everett interpretation. The chapter argues that since mathematically speaking probability ... More


The Paradox of Measurement

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0002
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

After an initial discussion of the general aims of scientific theories, the quantum measurement problem is presented. Non-Everettian solutions to the problem are briefly discussed; the aim of the ... More


Many Worlds?: Everett, Quantum Theory, and Reality

Simon Saunders, Jonathan Barrett, Adrian Kent, and David Wallace (eds)

Published in print:
2010
Published Online:
September 2010
ISBN:
9780199560561
eISBN:
9780191721380
Item type:
book
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199560561.001.0001
Subject:
Philosophy, Metaphysics/Epistemology, Philosophy of Science

What does realism about the quantum state imply? What follows when quantum theory is applied without restriction, if need be, to the whole universe? These are the questions which are debated in this ... More


First Interlude

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0005
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

This interlude considers, in dialog form, various objections and responses to the Everett interpretation, and in particular to the view developed in chapters 1–3 of of this book. (Problems of ... More


Uncertainty, Possibility, and Identity

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0010
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

This chapter considers some philosophical problems posed by the Everett interpretation: should someone expecting to undergo quantum-mechanical branching be uncertain about the result of that ... More


A Cornucopia of Everettian Consequences

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0013
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

This chapter reviews a collection of other philosophical and conceptual consequences of the Everett interpretation: the popular-science idea that chaos theory makes the future sensitively dependent ... More


Everettian Statistical Inference

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0008
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

This chapter extends chapter 5's formal proof into a general discussion of how we should assess evidence — and, in particular, how we should test scientific theories — given the possibility that ... More


Symmetry, Rationality, and the Born Rule

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0007
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

Building on work originally carried out by David Deutsch, the chapter develops a mathematically rigorous framework for discussing the quantum probability rule in terms of the preferences between ... More


Second Interlude

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0009
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

This interlude considers, in dialog form, various objections and responses to Everett interpretation based on concerns of probability, further exploring the position developed in chapters 4–6 of this ... More


Spacetime and the Quantum State

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0011
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

How is the microscopic ontology of quantum mechanics to be understood according to the Everett interpretation? And how, in particular, are we to understand concepts like spatial locality in ... More


A Metaphysician Looks at the Everett Interpretation 1

John Hawthorne

in Many Worlds?: Everett, Quantum Theory, and Reality

Published in print:
2010
Published Online:
September 2010
ISBN:
9780199560561
eISBN:
9780191721380
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199560561.003.0006
Subject:
Philosophy, Metaphysics/Epistemology, Philosophy of Science

This chapter compares the relation of emergent branching structure to the quantum state to the fundamental ontology with philosophically more familiar examples of emergence — of ordinary objects, in ... More


Chaos, Decoherence, and Branching

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0004
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

This chapter is concerned with the technical details of how emergent branching occurs in the Everett interpretation. Accordingly, its focus is on decoherence theory, the branch of quantum physics ... More


The Emergence of Multiplicity

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0003
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

The aim of this chapter is to explain how the ‘many worlds’ of the Everett interpretation can emerge from the underlying physics of quantum theory, without being put in by hand at the microscopic ... More


Phenomenology, decoherence, and the arrow of time

Claus Kiefer

in Quantum Gravity: Third Edition

Published in print:
2012
Published Online:
May 2012
ISBN:
9780199585205
eISBN:
9780191739378
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199585205.003.0010
Subject:
Physics, Theoretical, Computational, and Statistical Physics

This final chapter starts with a brief review of quantum-gravity phenomenology. It then focuses on an important conceptual issue – the relevance of quantum gravity for the general interpretation of ... More


Indifference principles and quantum mechanics

Michael G. Titelbaum

in Quitting Certainties: A Bayesian Framework Modeling Degrees of Belief

Published in print:
2012
Published Online:
May 2013
ISBN:
9780199658305
eISBN:
9780191748134
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199658305.003.0011
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

Adam Elga argues that in certain cases when an agent cannot tell which of many subjectively indistinguishable experiences she is currently having, she should assign equal credence to being in each. ... More


Making Sense of It All

Jeffrey Bub

in Bananaworld: Quantum Mechanics for Primates

Published in print:
2016
Published Online:
March 2016
ISBN:
9780198718536
eISBN:
9780191819643
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198718536.003.0010
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

The interaction between Schrodinger’s cat and a radioactive atom is the sort of thing that happens in a quantum measurement. The “measurement problem” of quantum mechanics is to explain how the cat ... More


The Directions of Branching and the Direction of Time

David Wallace

in The Emergent Multiverse: Quantum Theory according to the Everett Interpretation

Published in print:
2012
Published Online:
September 2012
ISBN:
9780199546961
eISBN:
9780191741418
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199546961.003.0012
Subject:
Philosophy, Philosophy of Science, Metaphysics/Epistemology

quantum-mechanical branching is a time-directed process, while the underlying equations of quantum theory admit no preferred direction of time. The chapter demonstrates that this apparent ... More


On the Plurality of Quantum Theories: Quantum Theory as a Framework, and its Implications for the Quantum Measurement Problem

David Wallace

in Scientific Realism and the Quantum

Published in print:
2020
Published Online:
May 2020
ISBN:
9780198814979
eISBN:
9780191852817
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198814979.003.0005
Subject:
Philosophy, Philosophy of Science

‘Quantum theory’ is not a single physical theory but a framework in which many different concrete theories fit. As such, a solution to the quantum measurement problem ought to provide a recipe to ... More


Privileged-Perspective Realism in the Quantum Multiverse

Nora Berenstain

in The Foundation of Reality: Fundamentality, Space, and Time

Published in print:
2020
Published Online:
May 2020
ISBN:
9780198831501
eISBN:
9780191869273
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198831501.003.0006
Subject:
Philosophy, Metaphysics/Epistemology

Privileged-perspective realism (PPR) is a version of metaphysical realism that takes certain irreducibly perspectival facts to be partly constitutive of reality. PPR asserts that there is a single ... More


Case Study: Teleportation

Christopher G. Timpson

in Quantum Information Theory and the Foundations of Quantum Mechanics

Published in print:
2013
Published Online:
September 2013
ISBN:
9780199296460
eISBN:
9780191741791
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199296460.003.0004
Subject:
Philosophy, Philosophy of Science

The value of recognising the status of ‘information’ as an abstract noun is illustrated by way of application to the analysis of quantum teleportation. It is argued that when one notes that ‘the ... More


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