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The development of twistor geometry for the description of fundamental physics
Sommerfeld Theory Colloquium (ASC)
English - June 26, 2024 15:30 - 1 hour - 1.16 GB Video - ★★★★★ - 2 ratingsScience physics theoretical physics colloquium distinguished speakers astrophysics particle physics solid state physics quantum physics gravity Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
Previous Episode: Arnold Sommerfeld Theory Colloquium
I will review the basic defi�nitions and ideas of the twistor program
for fundamental physics, as started by Roger Penrose around 1970. I
will give particular attention to certain conformally invariant struc-
tures involving deformed helicities, relevant to scattering amplitudes
for massless �elds. These played a role in Penrose's earliest contour
integral expressions, but have more recently been rediscovered and
greatly developed as an approach to regularization.