# Quantum

# The Quantum Pontiff

# Category archives for **Quantum**

The APS March meeting is next week as 10000 physicists invade Portland, Oregon. I hope Powell’s bookstore has stocked their science sections well! GQI, the topical group on quantum information, sponsors a good number of sessions at the meeting including sessions with invited talks, focus sessions, and general sessions. Below the fold I’m assembling a…

Hm, today we seem to have a posting from beyond the grave, arXiv:1003.2133: Proof of the Ergodic Theorem and the H-Theorem in Quantum Mechanics Authors: John von Neumann Abstract: It is shown how to resolve the apparent contradiction between the macroscopic approach of phase space and the validity of the uncertainty relations. The main notions…

And here I thought I was the king (err Pontiff) of quantum Bacon, but no: follow @kenfagerdotcom on twitter who describes himself as “Inventor of Quantum Bacon and accomplished lover.”

Richard, a long while back (yes, I’m cleaning my inbox!), sent me some cartoons that were apparently floating around in the 70s when he did his BS in Chemistry that are quite amusing:

Oh man sometimes even I, a staunch Caltech grad, wish I could be at MIT. The MIT QIP seminar this next Monday looks…intriguing (Monday 10/26 at 4:00 in 36-428 silly MITers and their numbered buildings, so cold.): David Kaiser (MIT) How the Hippies Saved Physics Abstract: In recent years, the field of quantum information science-an…

The Dutch book argument of Bruno de Finetti is an argument which is supposed to justify subjective probabilities. What one does in this argument is gives probabilities an operational definition in terms of the amount one is willing to bet on some event. Thus a probability p is mapped to your being willing to make…

Two notes on chairs. Michael Green is the new Lucasian chair of Mathematics replacing the esteemed Stephen Hawking. Green helped sparked the great optimism in string theory by discovering with John Schwarz the Green-Schwarz anomaly cancellation mechanism. Elsewhere, the Perimeter Institute has named ten new distinguished research chairs, among them a host of the quantum…

Update 10/13/09: corrected for ice cream flavor and location, thus merging two related universes. There is a story about Richard Feynman that while he was at Princeton MIT he had a hard time with dessert. Apparently they always served either chocolate or vanilla ice cream and Feynman would agonize over which he wanted that night.…

Over at Asymptotia, Len Adleman (the A in RSA, founder of DNA computation (but not the A in DNA!), and a discoverer of the APR primality testing algorithm) has a guest post about the foundations of quantum theory. Len suggests, if I understand him correctly, that one should attempt to understand the uncertainty arising in…