Monthly Archives: February 2026

Osterwalder-Schrader and Euclidean Spinor Fields

If one tries to Wick rotate a quantum field theory with spinor fields, it’s well-known that problems arise, something first recognized in Schwinger’s earliest papers on the subject. I’ll try and outline here the 1972 proposal by Osterwalder and Schrader … Continue reading

Posted in Uncategorized | 7 Comments

Harmonic Oscillators

This is related to the Osterwalder-Schrader posting, but is much, much more elementary. I’ll write up some basic facts about the quantum harmonic oscillator and explain what bothers me about the relation to Osterwalder-Schrader. Every quantum mechanics course covers the … Continue reading

Posted in Uncategorized | 9 Comments

Looks Like it is Happening…

Update: Sorry, but a commenter points out that this may just be an artifact of counting based on when most recently modified, not on original submission date. Numbers using original, not most recent, submission dates For 12/1 to 12/31 the … Continue reading

Posted in Uncategorized | 18 Comments

Osterwalder-Schrader

I’ve been trying to write up some new ideas about Wick rotation for a long time now, keep getting stuck as it becomes clear at various points that I haven’t gotten to the bottom of what is going on. To … Continue reading

Posted in Uncategorized | 19 Comments

Weil Anima

Dustin Clausen is giving a course at the IHES starting today on “Weil Anima” (or maybe “Weil-Moore Anima”. They’ve already put up video of the talk here (also available on Youtube). For an earlier talk by Clausen on this material … Continue reading

Posted in Langlands | 3 Comments

The Epstein Files

Like millions of people, I couldn’t stop myself from spending a fair amount of time recently doing searches here, where one can read endless emails, texts, etc. showing in detail what Jeffrey Epstein was up to over many years. I … Continue reading

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