Episode notes
Jim and Randy discuss experiments that put a minimum superluminal speed of communication between parts of a wavefunction. Show Notes: http://frontiers.physicsfm.com/44
Podcast
Physics Frontiers
Jim Rantschler · Tech & Science · English
Jim Rantschler and Randy Morrison discuss physics from elementary particles to cosmological effects at the limits of our theoretical knowledge or have recently emerged.
More from Physics Frontiers All episodes →
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4 Apr 2020 · 40 min
The Unruh Effect
Jim and Randy discuss the apparent creation of quanta seen by comparing the viewpoints of relatively accelerating observers -- the Unruh Effect. (There is a little noise that shows up on Randy's track half way through - I did my best) Show Notes: http://frontiers.physicsfm.com/49 (links to papers, podcasts, and more!)
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19 Jan 2020 · 40 min
The Gertsenshtein Effect
Randy introduces Jim to the Gertsenshtein effect, the conversion of gravitational waves to electromagnetic waves through resonances. Show Notes: http://frontiers.physicsfm.com/48
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24 Nov 2019 · 47 min
Bimetric Gravity
Randy introduces Jim to Sabine Hossenfelder's bimetric theory of gravity. In this gravitational theory, there are two types of matter whose only interaction is through gravitation. However, each one reacts to space-time differently, resulting in different metric tensors for each. In low-curvature situations, this creates a kind of anti-gravitation. Show Notes: http://frontiers.physicsfm.com/47
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22 Sep 2019 · 45 min
Wigner's Friend
Randy and Jim discuss experiments that purport to show that there is no such thing as objective reality. Show Notes: http://frontiers.physicsfm.com/46
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16 Aug 2019 · 44 min
Loop Quantum Gravity
Jim and Randy discuss loop quantum gravity, and integration of quantum mechanics and gravity that quantizes space-time itself through the use of uncertain quanta of volumes and the random connections between them.
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6 Jun 2019 · 34 min
The Positive Energy Theorem
Randy introduces Jim to a refutation of the positive energy theorem in a universe with a cosmological constant. Show Notes: http://frontiers.physicsfm.com/43
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4 May 2019 · 36 min
Entropic Gravity
Jim and Randy discuss Eric Verlinde's theory thermodynamic theory of gravity. This theory purports to explain gravitational attraction and inertia through statistical mechanics. Show Notes: http://frontiers.physicsfm.com/42
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24 Feb 2019 · 33 min
The Chameleon Field
Randy and Jim discuss the chameleon field -- a way to model dark energy with a scalar boson of varying strength. Show Notes: http://frontiers.physicsfm.com/41
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23 Dec 2018 · 53 min
The Octonions
Randy tells Jim about a way to use an extension of an extension of the complex numbers to reveal the nature of elementary particles. Show Notes: http://frontiers.physicsfm.com/40
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9 Dec 2018 · 36 min
Negative Effective Mass
Randy tells Jim about experiments with Neutrons and Photons in materials that exhibit negative effective mass. Not only do these effects show that the inertial mass of quasiparticles in a material can become negative, they show that these negative mass quasiparticles act like they have negative gravitational mass, as well. Show Notes: http://frontiers.physicsfm.com/39
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