Foundations of Physics

, Volume 44, Issue 6, pp 610–640

The New Quantum Logic


DOI: 10.1007/s10701-014-9802-4

Cite this article as:
Griffiths, R.B. Found Phys (2014) 44: 610. doi:10.1007/s10701-014-9802-4


It is shown how all the major conceptual difficulties of standard (textbook) quantum mechanics, including the two measurement problems and the (supposed) nonlocality that conflicts with special relativity, are resolved in the consistent or decoherent histories interpretation of quantum mechanics by using a modified form of quantum logic to discuss quantum properties (subspaces of the quantum Hilbert space), and treating quantum time development as a stochastic process. The histories approach in turn gives rise to some conceptual difficulties, in particular the correct choice of a framework (probabilistic sample space) or family of histories, and these are discussed. The central issue is that the principle of unicity, the idea that there is a unique single true description of the world, is incompatible with our current understanding of quantum mechanics.


Quantum mechanics Quantum logic Conceptual difficulties Consistent histories Unicity 

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Department of PhysicsCarnegie-Mellon UniversityPittsburghUSA

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