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VERSION:2.0
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SUMMARY:Black hole inner horizon instability in classical and semiclassica
 l gravity
DTSTART:20230511T143000Z
DTEND:20230511T160000Z
DTSTAMP:20260807T070503Z
UID:9ad7ec2c-049e-46f1-9f20-b379c23fa116
SEQUENCE:1
CREATED:20230505T151044Z
DESCRIPTION: ABSTRACT: In this talk I will present an overview of the inst
 abilities related to the presence of an inner horizon\, focusing in partic
 ular on the effect these can have on the evolution of the geometry as a wh
 ole. I will begin by presenting a simple exact model of a black hole under
 going the classical mass inflation process\, conveying an intuitive unders
 tanding of the origin of this instability\, and describing in detail the r
 esulting evolution of the geometry. Then I will discuss semiclassical back
 reaction. First\, in parallel to the Hawking evaporation of the outer hori
 zon\, I will analyse the semiclassical evolution of a classically unpertur
 bed inner horizon. Then\, I will conclude by analysing semiclassical backr
 eaction on a classically perturbed inner horizon (undergoing mass inflatio
 n)\, and discuss the possible outcomes of the evolution of a generic black
  hole in the full semiclassical theory.  
LAST-MODIFIED:20230505T151044Z
LOCATION:Sala de Seminários do DF\,  Pavilhão de Física\, 2º piso
URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/black-hole-inner-horizon-i
 nstability-in-classical-and-semiclassical-gravity/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="eazyt"><b> ABSTRACT</b>: I
 n this talk I will present an overview of the instabilities related to the
  presence of an inner horizon\, focusing in particular on the effect these
  can have on the evolution of the geometry as a whole. <br/><br/>I will be
 gin by presenting a simple exact model of a black hole undergoing the clas
 sical mass inflation process\, conveying an intuitive understanding of the
  origin of this instability\, and describing in detail the resulting evolu
 tion of the geometry. <br/><br/>Then I will discuss semiclassical backreac
 tion. First\, in parallel to the Hawking evaporation of the outer horizon\
 , I will analyse the semiclassical evolution of a classically unperturbed 
 inner horizon. Then\, I will conclude by analysing semiclassical backreact
 ion on a classically perturbed inner horizon (undergoing mass inflation)\,
  and discuss the possible outcomes of the evolution of a generic black hol
 e in the full semiclassical theory.  </p>
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