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CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:Rigidity of the extremal Kerr-Newman horizon - Ale
x Colling (University of Cambridge)
DTSTART;TZID=Europe/London:20240918T113000
DTEND;TZID=Europe/London:20240918T123000
UID:TALK219742AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/219742
DESCRIPTION:The Einstein equations for a spacetime containing
an extremal horizon induce a set of equations dete
rmined completely by quantities intrinsic to a com
pact cross-section of the horizon. Significant pro
gress on classifying solutions to these equations
was recently made by Dunajski and Lucietti\, who s
howed that any non-static vacuum solution must adm
it a Killing vector field.\n \;\nI will presen
t joint work with David Katona and James Lucietti
extending the Dunajski-Lucietti proof to four-dime
nsional Einstein-Maxwell theory. It follows that a
ny non-trivial cross-section in this theory is giv
en by the extremal Kerr-Newman family. I will also
discuss the wider class of quasi-Einstein equatio
ns and rule out non-trivial solutions on compact s
urfaces of non-zero genus.
LOCATION:Seminar Room 2\, Newton Institute
CONTACT:
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