Episode 67: Optical Gravity with Matthew R. Edwards

08/14/22 • 35 min

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Jim talks with Matthew R. Edwards about his theory of Optical Gravity. This is a Le Sage model of gravity based on graviton filiments.
Show Notes: http://frontiers.physicsfm.com/67

Jim talks with Matthew R. Edwards about his theory of Optical Gravity. This is a Le Sage model of gravity based on graviton filiments.
Show Notes: http://frontiers.physicsfm.com/67

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Episode 66: The Limit of General Relativity with James Owen Weatherall

Jim talks with James Owen Weatherall about his work on viewing general relativity as an effective field theory and where it should give way to another theory. General relativity does a very good job of describing the world we see in astronomical observations, but certain results, e.g. singularities, and certain limits, e.g. the Planck scale, hint that there should be another theory that supersedes it. Jim Weatherall argues that this is in a high curvature regime.
Show Notes: http://frontiers.physicsfm.com/66

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Episode 68: Quantum Resource Theories with Gilad Gour

Jim talks with Gilad Gour of the University of Toronto about quantum resource theories. These are theories of largish systems that describe the relationships between possible states by the different levels of resources required for each. By using resources, a system can move from one state to another. This results in a partial order where between two states there could be two different states inaccessible to one another. Although (usually) these coalesce into an order based on a single property of thermodynamically-sized systems, the entropy, a few do not.
Show Notes: http://frontiers.physicsfm.com/68