Quantum [Un]Speakables II

1. Front Matter

   Pages i-xvii

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2. John Stewart Bell—The Man

   1. Front Matter

      Pages 1-1

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   2. Address to Participants at Quantum [Un]Speakables II

      • Mary Bell

      Pages 3-4

   3. John Stewart Bell, Quantum Information and Quantum Information Theory

      • Andrew Whitaker

      Pages 5-16

   4. Bell’s Universe: A Personal Recollection

      • Reinhold Bertlmann

      Pages 17-80

3. Bell’s Theorem—Fundamental Issues

   1. Front Matter

      Pages 81-81

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   2. Why QBism Is Not the Copenhagen Interpretation and What John Bell Might Have Thought of It

      • N. David Mermin

      Pages 83-93

   3. On the Quantum Measurement Problem

      • Časlav Brukner

      Pages 95-117

   4. Causarum Investigatio and the Two Bell’s Theorems of John Bell

      • Howard M. Wiseman, Eric G. Cavalcanti

      Pages 119-142

   5. Whose Information? Information About What?

      • Jeffrey Bub

      Pages 143-154

   6. Quantum Theory: It’s Unreal

      • Terence Rudolph

      Pages 155-165

   7. The Universe Would Not Be Perfect Without Randomness: A Quantum Physicist’s Reading of Aquinas

      • Valerio Scarani

      Pages 167-174

   8. Bell’s Theorem Tells Us Not What Quantum Mechanics Is, but What Quantum Mechanics Is Not

      • Marek Żukowski

      Pages 175-185

4. Contextuality

   1. Front Matter

      Pages 187-187

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   2. The Unspeakable Why

      • Adán Cabello

      Pages 189-199

   3. A Reconstruction of Quantum Mechanics

      • Simon B. Kochen

      Pages 201-235

5. Bell Inequalities—Theory

   1. Front Matter

      Pages 237-237

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   2. A Quantum Mechanical Bound for CHSH-Type Bell Inequalities

      • Michael Epping, Hermann Kampermann, Dagmar Bruß

      Pages 239-259

   3. Bell Inequalities with Retarded Settings

      • Lucien Hardy

      Pages 261-272

   4. How to Avoid the Coincidence Loophole

      • Jan-Åke Larsson

      Pages 273-290

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.

• Bell's Theorem Anniversary
• Bertlmann's Socks
• Quantum Computing
• Quantum Contextuality
• Quantum Cryptography
• Quantum Entanglement
• Quantum Foundations and Philosophy
• Quantum Nonlocality
• Quantum Speakables and Unspeakables
• Testing Bell's Inequalities
• Zeilinger Group

• Faculty of Physics, University of Vienna, Vienna, Austria

  Reinhold Bertlmann

• Faculty of Physics, VCQ and IQOQI, University of Vienna, Vienna, Austria

  Anton Zeilinger

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.

Policies and ethics