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SUMMARY:Global structure of spherically symmetric charged scalar field spa
 cetimes - Jonathan Kommemi\, DAMTP
DTSTART:20110603T120000Z
DTEND:20110603T130000Z
UID:TALK30887@talks.cam.ac.uk
CONTACT:David Kubiznak
DESCRIPTION:In this talk\, we present recent results concerning the spheri
 cal collapse of self-gravitating charged scalar fields.  The main result g
 ives a complete characterization of the future boundary of spacetime\, pro
 viding a starting point for studying the cosmic censorship conjectures.  A
 s a simple corollary\, we show that scenarios of `naked singularity' forma
 tion by means of `super-charging' (near-)extremal Reissner-Nordstrom black
  holes are impossible.  We will also discuss results on trapped surface fo
 rmation\, Cauchy horizon stability and spacetime extendibility. The main d
 ifficulty in delimiting the boundary is isolated in proving a suitable glo
 bal extension principle which effectively excludes a broad class of singul
 arity formation.  This suggests a new notion of `strongly tame' matter mod
 els which we introduce.  The boundary characterization given extends to an
 y such `strongly tame' Einstein-matter system.
LOCATION:Pavilion B Potter Room (B1.19)
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