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Cambridge University Press 052166280X - Meets Philosophy at the Planck Scale: Contemporary Theories in - Edited by Craig Callender and Nick Huggett Table of Contents More information

Contents

Preface ix

1 Introduction 1 Craig Callender and Nick Huggett

Part I Theories of Quantum Gravity and their Philosophical Dimensions

2 Spacetime and the philosophical challenge of quantum gravity 33 Jeremy Butterfield and Christopher Isham

3 Naive quantum gravity 90 Steven Weinstein

4 Quantum spacetime: What do we know? 101

Part II Strings

5 Reflections on the fate of spacetime 125 Edward Witten

6 A philosopher looks at string theory 138 Robert Weingard

7 Black holes, dumb holes, and entropy 152 William G. Unruh

Part III Topological Quantum Field Theory

8 Higher-dimensional algebra and Planck scale physics 177 John C. Baez

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© Cambridge University Press www.cambridge.org Cambridge University Press 052166280X - Physics Meets Philosophy at the Planck Scale: Contemporary Theories in Quantum Gravity - Edited by Craig Callender and Nick Huggett Table of Contents More information

Contents

Part IV Quantum Gravity and the Interpretation of

9 On general covariance and best matching 199 Julian B. Barbour

10 Pre-Socratic quantum gravity 213 Gordon Belot and John Earman

11 The origin of the spacetime metric: Bell’s ‘Lorentzian pedagogy’ and its significance in general relativity 256 Harvey R. Brown and Oliver Pooley

Part V Quantum Gravity and the Interpretation of

12 Quantum spacetime without observers: Ontological clarity and the conceptual foundations of quantum gravity 275 Sheldon Goldstein and Stefan Teufel

13 On gravity’s role in quantum state reduction 290 Roger Penrose

14 Why the quantum must yield to gravity 305 Joy Christian

References 339

Notes on contributors 357

Index 361

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© Cambridge University Press www.cambridge.org