Wednesday, April 29, 2020

Itty Bitty Physics

Published 20200428

I talk about John Wheeler's "Information, Physics, Quantum: The Search for Links," wherein he talks about the facts about quantum mechanics that he thinks will be important for extending physics in the future.

Show Notes:

1. Paper for this episode:

2. Related episodes of Physics Frontiers:

3. Complexity, Entropy, and the Physics of Information., Wojciech H. Zurek, ed. (1990). This is the book that I'm reading. Apparently, it's still in print. The hardcover edition was apparently $65.00 in 1995 (although I bought it used), and now it's $145.00 hardcover (as I type).

4. Please comment below or visit our reddit page.

Sunday, April 19, 2020

The Quantum Bookie

Uploaded: 20200419

I discuss QBism, or quantum bayesianism, in the light of several of Christopher Fuchs' papers. Quantum Bayesianism is the extension of the Bayesian interpretation of probability -- one of many subjective views of the nature of probability -- to quantum mechanics. In essence, the view is that the wave function is your personal assessment of likelihoods of experiments and that the results of experiments are your personal experiences, and that the use of these experiments is to update your view of the world.


Show Notes:

1. Papers discussed in this episode:

2. Related Physics Frontiers Episodes:

3. Related Quantum Paradoxes Episodes:
4. Feel free to comment below or on the Physics FM reddit page. You can also follow us on Facebook, if you'd like to talk to Randy, or Twitter, if you'd like to not talk to me.

Counting Universes

Jim discusses the size of the multiverse, reading: Vilenkin, A., "A Measure of the Multiverse." J. Phys A. 40, 6777 (2007) in...