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CATEGORIES:DAMTP Friday GR Seminar
SUMMARY:Superrotations\, asymptotic structure and holograp
hy - Federico Capone (Friedrich Schiller Universit
y Jena)
DTSTART;TZID=Europe/London:20221118T130000
DTEND;TZID=Europe/London:20221118T140000
UID:TALK179108AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/179108
DESCRIPTION:Soft scattering theorems motivate the inclusion of
superrotations among the asymptotic symmetries of
four-dimensional gravity at null infinity. For th
is purpose\, the standard asymptotically flat bou
ndary conditions must be relaxed. I will motivate
the need of analysing these structures at spacelik
e infinity as well\, and in higher dimensions in b
oth asymptotic directions. In both cases the bound
ary conditions need to be reconsidered and the asy
mptotic structure of spacetime worked out from scr
atch. The analysis suggests previously unnoticed c
onnections with standard AdS/CFT results\, such as
the relationship between anomalies of the field t
heory and the presence of logarithmic terms in the
asymptotic expansion. Although at the moment thes
e seem to be formal analogies\, they can point tow
ards fundamental features of holographic dualities
in flat space and need to be explored further.
LOCATION:Potter room/Zoom
CONTACT:Prahar Mitra
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