Episode 75: Categorical Probability and the Measurement Problem

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1. 

   E80 · 29 Dec 2024 · 1 hr 14 min

   Episode 80: Emergent Decoherent Histories with Philipp Strasberg

   Jim talks with Philipp Strasberg about his simulations of branching and recombining processes in the evolution of quantum states, and their meaning for not only for the many worlds interpretation but also for understanding quantum mechanics in general.Show Notes: http://frontiers.physicsfm.com/80

2. 

   E79 · 4 Sep 2024 · 1 hr

   Episode 79: Primordial Black Holes with QCD Color Charge with Elba Alonso-Monsalve and David Kaiser

   Jim talks with Elba Alonso-Monsalve and David Kaiser about the prospects to describe dark matter as tiny black holes that were created at the end of cosmic inflation. Due to the large inhomogeneities in the distribution of matter at that time, the black holes could form directly from the matter distribution and not be color neutral (in the sense of QCD).Show notes: http://frontiers.physicsfm.com/79

3. 

   E78 · 31 May 2024 · 51 min

   Episode 78: Quantum Machine Learning with Bruna Shinohara

   Jim talks with Bruna Shinohara of CMC Microsystems. Quantum computing and machine learning are both currently making huge strides. So it is not strange that people are trying to use quantum computing for machine learning.

4. 

   E77 · 31 Mar 2024 · 1 hr 21 min

   Episode 77: Maxwellian Ratchets with Alex Jurgens

   Jim talks with Alex Jurgens about Maxwellian ratchets, automata that are similar to Maxwell's Demon. They talk about their implications for information processing and entropy.http://frontiers.physicsfm.com/77

5. 

   E76 · 29 Jan 2024 · 50 min

   Episode 76: Undeciability and Theories of Everything with Claus Kiefer

   Jim talks with Claus Kiefer about the implications of Goedel's incompleteness theorems on the search for the theory.Show Notes: http://frontiers.physicsfm.com/76

6. 

   E74 · 9 Jul 2023 · 50 min

   Episode 74: Stochastic Thermodynamics with David Wolpert

   Jim talks with David Wolpert about the non-equilibrium behavior of computation, what it means for entropy, and how it relates to traditional thermodynamics.Show Notes: http://frontiers.physicsfm.com/74

7. 

   E73 · 18 Jun 2023 · 1 hr 1 min

   Episode 73: Quantum Money with Jiahui Liu

   Jim discusses quantum money with Jiahui Liu. Quantum money is a linchpin of quantum cryptography. The ability to create secure banknotes using quantum computers would allow even more secure methods of encryption for communications.

8. 

   E72 · 23 Apr 2023 · 1 hr 14 min

   Episode 72: Born Rule and Gravity with Antony Valentini

   Jim talks with Antony Valentini about the difficulties of interpretation of quantum mechanics in light of quantum gravity. In particular, Antony discusses the failure of the Born Rule due to the impossibility of normalization (the fact that probabilities must sum to 100%) at that scale, and therefore the need to interpret the wavefunction as something more than merely the knowledge of the observer about the system. They spend some time talking about the de Broglie-Bohm interpretation in light of quantum gravity.Show Notes: http://frontiers.physicsfm.com/72

9. 

   E71 · 19 Feb 2023 · 46 min

   Episode 71: Primordial Graviton Background

   Jim talks with Sunny Vagnozzi about using the Primoridial Graviton Background to rule out all inflation models. Show Notes: http://frontiers.physicsfm.com/71

10. 

    E70 · 18 Dec 2022 · 47 min

    Episode 70: Path Integrals and Entanglement with Ken Wharton

    Jim talks with Ken Wharton about how to describe entangled states as sums over histories of particle paths using the path integral method. He shows how this works for Bell-type experiments, entanglements swapping, delayed choice experiments, and the triangle network. This leads to a second way to describe what happens quantum mechanically without introducing non-locality (but requiring other classical ideas to break down).Show Notes: http://frontiers.physicsfm.com/70