Quantum [Un]Speakables II: Half a Century of Bell's Theorem

Front Cover
Reinhold Bertlmann, Anton Zeilinger
Springer, Nov 15, 2016 - Science - 533 pages
This self-contained essay collection is published to commemorate half a century of Bell’s theorem. Like its much acclaimed predecessor “Quantum [Un]Speakables: From Bell to Quantum Information” (published 2002), it comprises essays by many of the worlds leading quantum physicists and philosophers. These revisit the foundations of quantum theory as well as elucidating the remarkable progress in quantum technologies achieved in the last couple of decades. Fundamental concepts such as entanglement, nonlocality and contextuality are described in an accessible manner and, alongside lively descriptions of the various theoretical and experimental approaches, the book also delivers interesting philosophical insights. The collection as a whole will serve as a broad introduction for students and newcomers as well as delighting the scientifically literate general reader.
 

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Contents

1 Address to Participants at Quantum UnSpeakables II
3
2 John Stewart Bell Quantum Information and Quantum Information Theory
5
A Personal Recollection
17
Bells TheoremFundamental Issues
81
4 Why QBism Is Not the Copenhagen Interpretation and What John Bell Might Have Thought of It
83
5 On the Quantum Measurement Problem
94
6 Causarum Investigatio and the Two Bells Theorems of John Bell
119
7 Whose Information? Information About What?
143
17 Black Box Quantum Mechanics
307
18 Quantum Measurement of Spins and Magnets and the Classical Limit of PRBoxes
320
19 The Dynamical Roles Played by Mass and Proper Time in Physics
331
20 On Spatial Entanglement Wave Functions
339
Entanglement Features
342
21 Analysing Multiparticle Quantum States
343
22 FewBody Entanglement Manipulation
365
Neutron Interferometry
381

Its Unreal
155
A Quantum Physicists Reading of Aquinas
166
10 Bells Theorem Tells Us Not What Quantum Mechanics Is but What Quantum Mechanics Is Not
175
Contextuality
186
11 The Unspeakable Why
187
12 A Reconstruction of Quantum Mechanics
201
Bell InequalitiesTheory
236
13 A Quantum Mechanical Bound for CHSHType Bell Inequalities
239
14 Bell Inequalities with Retarded Settings
260
15 How to Avoid the Coincidence Loophole
273
16 Bringing Bells Theorem Back to the Domain of Particle Physics and Cosmology
291
Quantum Topics
305
23 Search for Hidden Observables in Neutron Experiments
383
24 What Does Quantum Theory Tell Us? A MatterWave Approach
393
Bell InequalitiesExperiment
412
25 Nonlocality and Quantum Cakes Revisited
415
26 An Early LongDistance Quantum Experiment
424
27 Quantum Information Experiments with FreeSpace Channels
433
28 Bells Theorem Bell Inequalities and the Probability Normalization Loophole
451
29 On Loopholes and Experiments
485
The Role of Information
502
Contributions to the Conference
519
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About the author (2016)

Reinhold Bertlmann (Professor of Physics in Vienna) is known for his work on anomalies in quantum field theory and on gluon condensates and potential theory and for always wearing two socks of different color as an illustration of the properties of quantum entanglement, used by John Bell, with whom he then collaborated at CERN, as the red thread in his seminal paper “Bertlmann’s Socks and the Nature of Reality”.

Anton Zeilinger (Professor of Physics in Vienna) explores the foundations of quantum physics and their applications to quantum information science and technology. His experiments on the entanglement of photons, which Einstein called “spooky action at a distance”, have become central to the emerging field of quantum information science where Zeilinger performed pioneering realizations of quantum teleportation, quantum cryptography, and quantum computation.

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