The Positive Energy Theorem

FromPhysics Frontiers

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The Positive Energy Theorem

FromPhysics Frontiers

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Length:

34 minutes

Released:

Jun 6, 2019

Format:

Podcast episode

Description

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

Released:

Jun 6, 2019

Format:

Podcast episode

Titles in the series (76)

Jim Rantschler and Randy Morrison discuss physics from elementary particles to cosmological effects at the limits of our theoretical knowledge or have recently emerged.

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Pilot Wave Hydrodynamics: Randy and Jim discuss a physical analogy to quantum mechanics consisting of a droplet of fluid bo... by Physics Frontiers
58 min listen
f(R) Theories of Gravity: Jim and Randy discuss gravitational theories that modify general relativity by changing the actio... by Physics Frontiers
37 min listen
The de Broglie-Bohm Interpretation of Quantum Mechanics: Jim talks to Randy about the pilot wave interpretation of quantum mechanics, which separates the ... by Physics Frontiers
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Requirements for Alternative Gravity Theories: In this episode Jim and Randy talk about how to evaluate alternative gravity theories. What sort... by Physics Frontiers
48 min listen
Vacuum Fluctuations and the Casimir Effect: Jim and Randy discuss how vacuum fluctuations produce the van der Waals forces and the Casimir ef... by Physics Frontiers
48 min listen
G4V: Four Vector Potential Gravitation: Randy talks to Jim about Carver Mead's G4V, a formulation of gravitation combining the equivalenc... by Physics Frontiers
44 min listen
Phononics: Randy tells Jim about the emerging field of Phononics: using quantum particles of heat in materia... by Physics Frontiers
48 min listen
A Gravitational Arrow of Time: Jim and Randy discuss a cosmological theory that purports to find an explanation for the arrow of... by Physics Frontiers
41 min listen
Exotic Photon Trajectories in Quantum Mechanics: Jim and Randy discuss strange trajectories observed in triple slit experiments with metallic plat... by Physics Frontiers
26 min listen
Time Crystals: Jim talks to Randy about structures that are periodic in time like crystals are periodic in space... by Physics Frontiers
62 min listen
Virtual Gravitational Dipoles: Randy discusses what the Cosmological implications of a negative gravitational mass would be with... by Physics Frontiers
51 min listen
Stochastic Resonance Energy Harvesting: Randy tells Jim about ways in which external vibrations can be used to do useful work in large-sc... by Physics Frontiers
38 min listen
Gravitoelectromagnetism: Randy talks to Jim about gravitoelectromagnetism. Based on the similarity between Newtonian grav... by Physics Frontiers
41 min listen
Five Proven Methods of Levitation: Randy shows Jim five different ways in which a body can be levitated: by magnetism, by supercondu... by Physics Frontiers
47 min listen
Tunneling Time: Jim talks to Randy about the amount of time it takes for an electron to tunnel through a forbidde... by Physics Frontiers
47 min listen
The Island of Stability: Randy tells Jim about the island of stability: a theoretically predicted oasis of stable nuclear ... by Physics Frontiers
25 min listen
The Physics of Time Travel: Randy and Jim talk about traveling through through time, discussing relativity and, in particular... by Physics Frontiers
44 min listen
The 2T Physics of Itzhak Bars: Randy tells Jim about a theory that complements other theories of fundamental physics based upon ... by Physics Frontiers
45 min listen
The Origin of Inertia: Randy tells Jim about a scheme that uses Mach's Principle - the idea that there is a preferred ba... by Physics Frontiers
39 min listen
Retrocausality: Jim and Randy look at how quantum mechanics is affected by time. Most importantly, what happens ... by Physics Frontiers
35 min listen
Weyl and Quasiparticles: Jim and Randy discuss quasiparticles recently found in condensed matter systems that mirror parti... by Physics Frontiers
37 min listen
Dark Energy: Randy helps Jim get a handle on Dark Energy. Why do we need it? What could it be? What does it... by Physics Frontiers
73 min listen
Photonic Molecules and Optical Circuits: Randy tells Jim about photonic molecules, pairs of photons that create bound states like molecule... by Physics Frontiers
37 min listen
CPT Symmetry and Gravitation: CPT Symmetry is a fundamental symmetry in the standard model. Jim and Randy discuss what happens... by Physics Frontiers
32 min listen
Stochastic Electrodynamics: Randy explains Stochastic Electrodynamics to Jim, the theory that vacuum fluctuations are the cau... by Physics Frontiers
50 min listen
Antimatter Production at a Potential Boundary: Randy shows Jim an idea for generating antimatter using the Casimir effect that doesn't require a... by Physics Frontiers
40 min listen
The String Theory Landscape: Jim and Randy explore the landscape of string theory in the anthropic manner put forward by Leona... by Physics Frontiers
42 min listen
Gravitational Alternatives to Dark Energy: Jim and Randy discuss how modifications to general relativity can be used to mimic the effects of... by Physics Frontiers
47 min listen
The Einstein-Cartan Torsion Field Theory: Randy explains to Jim theories on how to incorporate a native angular momentum into general relat... by Physics Frontiers
35 min listen
Post-Newtonian Gravitation: Jim discusses the Parameterized Post-Newtonian formalism with Randy. The PPN framework is a gene... by Physics Frontiers
42 min listen

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The Positive Energy Theorem

The Positive Energy Theorem

Description

Titles in the series (76)

More Episodes from Physics Frontiers