Is *-Algebra the Key to Understanding Quantum Probability Theory?

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SUMMARY

The discussion centers on the unique aspects of probability theory in quantum mechanics, specifically its divergence from Kolmogorov's axioms. Key concepts include the use of von Neumann (W*) algebras as a foundational element in quantum probability, which extends classical probability through quantum logic represented by projection operators on Hilbert spaces. Recommended resources include the two-volume series by Kadison & Ringrose on operator algebras and works by Jacques Diximier on C* and W* algebras. The conversation also highlights the need for updated literature on quantum probability, noting the disparity in publication dates of relevant texts.

PREREQUISITES
  • Understanding of quantum mechanics fundamentals
  • Familiarity with classical probability theory and Kolmogorov's axioms
  • Knowledge of Hilbert spaces and projection operators
  • Basic comprehension of operator algebras, specifically C* and W* algebras
NEXT STEPS
  • Research the mathematical foundations of quantum mechanics through Kadison & Ringrose's volumes on operator algebras
  • Explore Jacques Diximier's works on C* and W* algebras for deeper insights
  • Investigate the implications of quantum logic in probability theory
  • Examine the Wikipedia entry on *-algebra for foundational knowledge and potential references
USEFUL FOR

Mathematicians, physicists, and researchers interested in the intersection of quantum mechanics and probability theory, particularly those exploring the mathematical structures underpinning quantum logic and operator algebras.

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As I realized recently, the probability theory as used in quantum mechanics does not follow Kolmogorov's axioms. I am interested in a book that treats probability theory as it is done in quantum mechanics. Is this treated in books on quantum logic?

Any other good book on the mathematical foundations of quantum mechanics would be welcome.
 
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The Stanford Encyclopedia of Philosophy said:
It is uncontroversial (though remarkable) that the formal apparatus of quantum mechanics reduces neatly to a generalization of classical probability in which the role played by a Boolean algebra of events in the latter is taken over by the “quantum logic” of projection operators on a Hilbert space.
...
The quantum-probabilistic formalism, as developed by von Neumann [1932], assumes that...

It seems these von Neumann (W*) algebras are the main invention in this new type of probability. They seem to be an extension of C* algebras; the two volumes by Kadison & Ringrose about operator algebras cover them. There are also separate volumes by Jacques Diximier on C* algebras and W* algebras.

I also looked into the probability side of it. I see two books that seem related to what you want:

https://www.amazon.com/dp/3642204376/?tag=pfamazon01-20
https://www.amazon.com/dp/354013915X/?tag=pfamazon01-20

It seems very strange to me, though, that the first one is from 2011 while the second is from 1985.
 
Last edited by a moderator:
Also have a look here, here, and here.

Strangely, there is a wikipedia entry for *-algebra, it was created in 2009 and as yet has no references listed. But someone obviously wrote it, so this may be a direction that things will go (I guess).
 

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