Category Archives: Euclidean Twistor Unification

David Tong: Lectures on the Standard Model

Posted on March 22, 2024 by woit

David Tong has produced a series of very high quality lectures on theoretical physics over the years, available at his website here. Recently a new set of lectures has appeared, on the topic of the Standard Model. Skimming through these, … Continue reading →

Posted in Euclidean Twistor Unification, Uncategorized | 13 Comments

Why physicists are rethinking the route to a theory of everything

Posted on February 7, 2024 by woit

New Scientist this week has a cover story I can strongly endorse, entitled Why physicists are rethinking the route to a theory of everything. It’s by journalist Michael Brooks, partly based on a long conversation we had a month or … Continue reading →

Posted in Euclidean Twistor Unification | 50 Comments

Unification, Spinors, Twistors, String Theory

Posted on November 22, 2023 by woit

Last month I recorded a podcast with Curt Jaimungal for his Theories of Everything site, and it’s now available with audio here, on Youtube here. There are quite a few other programs on the site well worth watching. Much of … Continue reading →

Posted in Euclidean Twistor Unification, Uncategorized | 22 Comments

Spacetime is Right-handed v. 2.0 and Some Notes on Spinors and Twistors

Posted on October 30, 2023 by woit

I’ve just replaced the old version of my draft “spacetime is right-handed” paper (discussed here) with a new, hopefully improved version. If it is improved, thanks are due to a couple people who sent helpful comments on the older version, … Continue reading →

Posted in Euclidean Twistor Unification | 18 Comments

Spacetime is Right-handed

Posted on October 9, 2023 by woit

I’ve finally managed to write up something short about an idea I’ve been working on for the last few months, so now have a preliminary draft version of a paper tentatively entitled Spacetime is Right-handed. One motivation for this is … Continue reading →

Posted in Euclidean Twistor Unification | 17 Comments

Is Space-Time Really Doomed?

Posted on March 31, 2022 by woit

For many years now the consensus in a dominant part of the theoretical physics community has been that the center of attention should be on the problem of quantizing gravity, and that conventional notions of quantum theory and space-time geometry … Continue reading →

Posted in Euclidean Twistor Unification | 22 Comments

Seminar talk on Euclidean Twistor Unification and the Twistor P1

Posted on February 14, 2022 by woit

Today I gave a talk via Zoom at the Algebra, Particles and Quantum Theory seminar series organized by Nichol Furey. The slides from the talk are here (I gather the talk was recorded and video might be available at some … Continue reading →

Posted in Euclidean Twistor Unification | 17 Comments

Notes on the Twistor P1

Posted on January 29, 2022 by woit

I’ve just finished writing up some notes on what the twistor $P^1$ is and the various ways it shows up in mathematics.  The notes are available here, and may or may not get expanded at some point.  The rest of … Continue reading →

Posted in Euclidean Twistor Unification, Langlands | 8 Comments

Visit to Brown

Posted on September 24, 2021 by woit

I spent yesterday up in Providence, visiting the Theoretical Physics Center at Brown, and giving a talk there (slides are available here, newer version of a paper here), At some point a recording of the talk should appear online. In … Continue reading →

Posted in Book Reviews, Euclidean Twistor Unification | 7 Comments

Euclidean Twistor Unification, version 2.0

Posted on September 10, 2021 by woit

I’ve completely re-organized and largely rewritten my paper from earlier this year on Euclidean Spinors and Twistor Unification. Soon I’ll upload this as a revision to the arXiv, for now it’s available here. This new version starts from a very … Continue reading →

Posted in Euclidean Twistor Unification | 28 Comments