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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20091119T000000
DTEND;TZID=Atlantic/Canary:20091119T010000
UID:iactalks-128
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/128
CREATED:2009-11-19T00:00:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Structure of the Kerr-Schild geometry, beam-like solutions and fluc
 tuations of the black-hole horizon
DESCRIPTION:Structure of the Kerr-Schild geometry, beam-like solutions and 
 fluctuations of the black-hole horizon\nProf. Alexander Burinskii\n\nExact
  solutions of the Einstein-Maxwell equations in the Kerr-Schild formalism 
 are discussed. We show that black hole horizon is unstable with respect to
  electromagnetic excitations. Contrary to smooth harmonic functions used i
 n perturbative solutions, the exact solutions for electromagnetic excitati
 ons on the Kerr background have the form of singular twistor-beams which h
 ave very strong back reaction to metric and break the black-hole horizon, 
 forming in it holes which allow radiation to escape interior of black-hole
 . As a result, under action of the external electromagnetic field the hori
 zon may be covered by a set of fluctuating micro-holes, which corresponds 
 to a semi-classical mechanism of Hawking radiation.\n\n
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