Author Archives: woit

Quick Links

A few quick links: I was sorry to hear of the recent death of Vaughan Jones. A few things about his life and work have started to appear, see here, here and here. For a wonderful in-depth article about the … Continue reading

Posted in Uncategorized | 7 Comments

Fall Quantum Mechanics Class

I’ll be teaching a course on quantum mechanics this year here at Columbia, from a point of view aimed somewhat at mathematicians, emphasizing the role of Lie groups and their representations. For more details, the course webpage is here. The … Continue reading

Posted in Quantum Mechanics | 18 Comments

AMS Open Math Notes

The AMS for the last few years has had a valuable project called AMS Open Math Notes, a site to gather and make available course notes for math classes, documents of the sort that people sometimes make available on their … Continue reading

Posted in Uncategorized | 2 Comments

Quantum Reality

Jim Baggott’s new book, Quantum Reality, is now out here in US, and I highly recommend it to anyone interested in the issues surrounding the interpretation of quantum mechanics. Starting next week I’ll be teaching a course on quantum mechanics … Continue reading

Posted in Book Reviews | 29 Comments

Funding Priorities

The research that gets done in any field of science is heavily influenced by the priorities set by those who fund the research. For science in the US in general, and the field of theoretical physics in particular, recent years … Continue reading

Posted in Uncategorized | 35 Comments

Guys and Their Theories of Everything

I’m a big fan of Sabine Hossenfelder’s music videos, the latest of which, Theories of Everything, has recently appeared. I also agree with much of the discussion of this at her latest blog posting where Steven Evans writes nobody wants … Continue reading

Posted in Uncategorized | 16 Comments

Twistors and the Standard Model

For the past few months I’ve been working on writing up some ideas I’m quite excited about, and the pandemic has helped move things along by removing distractions and forcing me to mostly stay home. There’s now something written that … Continue reading

Posted in Uncategorized | 15 Comments

Quantization and Dirac Cohomology

For many years I’ve been fascinated by the topic of “Dirac cohomology” and its possible relations to various questions about quantization and quantum field theory. At first I was mainly trying to understand the relation to BRST, and wrote some … Continue reading

Posted in BRST | Leave a comment

(Imaginary) Time Asymmetry

When people write down a list of axioms for quantum mechanics, they typically neglect to include a crucial one: positivity (or more generally, boundedness below) of the energy. This is equivalent to saying that something very different happens when you … Continue reading

Posted in Quantum Mechanics | 22 Comments

Yesterday’s Hype

Every summer CERN runs a summer student programme, designed to bring in a group of students to participate in scientific activities at CERN and provide lectures for them about the basics and latest state of the field of high energy … Continue reading

Posted in This Week's Hype | 28 Comments