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B Single Classical-Quantum Physics of Everything?

  1. Sep 7, 2016 #1
    How close are physicists to understanding and describing the physics of all things quantum and classical and quantum systems interacting with "classical" systems in a single integrated consistent mathematical framework?

    i.e. How far are we from a single integrated formalism that describes classical and quantum dynamics and everything in-between (including all the interactions... some of which are classified as "measurement" now)?
     
  2. jcsd
  3. Sep 7, 2016 #2
    from what i have read and heard it will still be decades before we have a single integrated formalism
    i believe that we still don't have any quantum math for gravity yet!
     
  4. Sep 8, 2016 #3

    A. Neumaier

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    2016 Award

    The framework you ask for is already fully developed. See the following paper and its references:

    R. Kapral, Progress in the theory of mixed quantum-classical dynamics, Annu. Rev. Phys. Chem. 57 (2006): 129-157.
    http://www.annualreviews.org/doi/full/10.1146/annurev.physchem.57.032905.104702

    However, except for the simplest systems, explicit calculations involving macroscopic systems (as needed for the measurement process) are difficult, as always in statistical mechanics.
     
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