Is Information the Key?

  • Jeffrey Bub
Part of the The Western Ontario Series in Philosophy of Science book series (WONS, volume 78)


The difference between classical and quantum information arises because of the different distinguishability properties of classical and quantum pure states: only orthogonal quantum states are reliably distinguishable with zero probability of error. Classical information is that sort of information represented in a set of distinguishable states and so can be regarded as a subcategory of quantum information. The transition from classical to relativistic physics rests on the recognition that space-time structurally different than we thought. In the transition from classical to quantum physics, what we have discovered is that information in the physical sense is structurally different than we thought. The claim about information and quantum mechanics is that the puzzling and seemingly paradoxical features of the theory, including the measurement problem, are to be understood as arising from this structural difference.


Quantum Correlation Credence Function Deterministic State Hide Variable Theory Stochastic Source 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This paper was written during the tenure of a University of Maryland RASA semester research award.


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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  1. 1.Department of PhilosophyUniversity of MarylandCollege ParkUSA
  2. 2.Institute for Physical Science and Technology, University of MarylandCollege ParkUSA

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