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CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:Intrinsic rigidity of extremal horizons and black 
 hole uniqueness - James Lucietti (University of Ed
 inburgh)
DTSTART;TZID=Europe/London:20240918T100000
DTEND;TZID=Europe/London:20240918T110000
UID:TALK219691AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/219691
DESCRIPTION:I will present a recent proof which shows that the
  intrinsic geometry of compact cross-sections of a
 ny vacuum extremal horizon\, possibly with a cosmo
 logical constant\, must admit a Killing vector fie
 ld. In particular\, this implies that the extremal
  Kerr horizon is the most general such horizon in 
 four-dimensional General Relativity and completes 
 the classification of the associated near-horizon 
 geometries. &nbsp\;I will also discuss a recent un
 iqueness proof which shows that any analytic Einst
 ein spacetime with positive cosmological constant\
 , that contains a static extremal horizon with a m
 aximally symmetric compact cross-section\, is the 
 extremal Schwarzschild de Sitter spacetime or its 
 near-horizon geometry.
LOCATION:Seminar Room 2\, Newton Institute
CONTACT:
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