Sunday, April 23, 2023

The Born Rule and Gravity with Antony Valentini

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Recorded: 2023/03/03 Released: 2023/04/23

Jim talks with Antony Valentini about the status of the Born Rule in quantum gravity. In particular, it doesn't work. Since the wavefunction cannot be normalized in quantum gravity, there is no way to interpret Ψ as the knowledge of the observer about the quantum system. Instead, some realist interpretation of the wavefunction is required. In this regard, Jim and Anotony also discuss the de Broglie-Bohm interpretation in light of quantum gravity.
------------------------------------------- Notes:

1. The articles that we discussed in this program:
2. Some other articles mentioned in the podcast: 3. Books mentioned in the podcast:
  • Holland, P. R., The Quantum Theory of Motion: an Account of the de Broglie-Bohm Causal Interpretation of Quantum Mechanics. Cambridge, 1993. [Amazon]
  • Anderson, E., The Problem of Time: Quantum Mechanics Versus General Relativity. Springer, 2017. [Amazon]
4. Antony's lectures mentioned in the discussion:
5. Related Episodes of Physics Frontiers:
6. Please visit and comment on our subreddit, YouTube Channel, or Twitter account. These are also places to look for announcements of new episodes and the like. And if you could help us keep this going by contributing to our Patreon, we'd be grateful.
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1 comment:

  1. Very interesting episode! I would love for you to have on Drs. John G. Williamson and Vivian Robinson to discuss their remarkable VSL theory. In brief they argue, "The nature of this spacetime distortion — the mechanism by which gravity occurs — is that the presence of mass induces changes in the electric permittivity (ε0) of the free space surrounding it. (It similarly induces changes in the magnetic permeability (μ0) of space. These two properties are related to the speed of light (c) in a fixed ratio, as determined by Maxwell, and given by the equation c2 = 1/ε0μ0.) For convenience, μ0 is set at a fixed value." Very eager to hear your comments.