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SUMMARY:"Light-ray operators and the w(1+infinity) algebra" by Elizabeth H
 imwich\, Princeton University
DTSTART;VALUE=DATE:20251208
DTSTAMP:20260510T054707Z
UID:66c3dd5bbb88998e909d1cc134b7da99a66949d41a2e2bf8d56db163
CATEGORIES:Conferences - Seminars
DESCRIPTION:In four-dimensional asymptotically flat spacetimes\, an infini
 te tower of soft graviton modes generates the symmetry algebra of w(1+infi
 nity) at tree level.  This algebra is a universal feature of tree-level g
 ravitational scattering with minimally-coupled gravitational interactions.
   In the first part of the talk\, I will review this construction and ide
 ntify an explicit form of the w(1+infinity) symmetry generators involving 
 integrals of the stress tensor along null infinity.  In the second part\,
  I will discuss an independent derivation of the w(1+infinity) algebra in 
 the light-ray operator algebra of generic 4D conformal field theories.  T
 his talk is based on work in progress with Monica Pate.
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727 https://epfl.zoom.u
 s/j/69362612859
STATUS:CONFIRMED
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