Loop Quantum Gravity

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Recorded: 6/13/2019 Released: 8/16/2019

Randy and Jim explore loop quantum gravity. Loop quantum gravity is a theory of space-time that emphasizes the random, pre-metric connections between points of a reasonably small size (the surface areas are on the order of the square of the Planck length) and the uncertainties therein.
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Notes:

1. The papers we read for this program:

• Ashtekar, A., "Introduction to Loop Quantum Gravity." (Lecture). [arXiv]
• Rovelli, C., "Space and Time in Loop Quantum Gravity." Philosophy Beyond Spacetime and Beyond Spacetime: Foundations of Quantum Gravity (2018). [arXiv]

2. Related Episodes of Physics Frontiers:

• Physics Frontiers 30: The Consistent Histories Interpretation of Quantum Mechanics
• Physics Frontiers 35: The String Theory Landscape
• Physics Frontiers 42: Entropic Gravity

4. Carlo Rovelli has a very readable, and so far not too technical, introductory book on Loop Quantum Gravity, cleverly entitled Covariant Loop Quantum Gravity: an elementary introduction to quantum gravity and spinfoam theory. I think this is a pdf, if you want him to continue to live his monkish lifestyle.

5. Please visit and comment on our subreddit, and if you can help us keep this going by contributing to our Patreon, we'd be grateful.

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