BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Gauge Theory Description of Black Hole Evaporation
DTSTART:20160909T140000
DTEND:20160909T160000
DTSTAMP:20260920T164826Z
UID:d3e1b12ce510ae3d06ae10e72cb468bc60b2390f6ab342bbcba2168b
CATEGORIES:Conferences - Seminars
DESCRIPTION:Masanori Hanada\nWe consider one of the biggest mystery of the
  gauge/gravity duality: Can gauge theories describe evaporating black hole
 s with negative specific heat? Most people believe the answer is yes\, by
  assuming the gauge/gravity duality is correct. We study this problem fro
 m gauge theory side\, without assuming inputs from gravity side\, because 
 otherwise we would be simply assuming the answer to derive the answer\, an
 d furthermore\, because we expect the microscopic description based on gau
 ge theory should provide us with intuition into quantum gravity.\nWe point
  out that the previous analyses missed the process of the emission of D-br
 anes (eigenvalues of matrices)\, and with a proper treatment of this proc
 ess\, the evaporation and negative specific heat are inevitable consequenc
 es in rather generic class of black holes with gauge theory duals. For the
  specific case of black zero-brane\, we analyze the evaporation process qu
 antitatively by using analytic methods. Then we apply the same idea to 4d
  N=4 SYM on three-sphere. It turns out that the properties of the small 10
 d black hole and the Hagedorn behavior can be obtained rather straightforw
 ardly.\nWe also consider the 'bulk geometry' by looking at gauge theory. M
 ore specifically\, we study the force acting on D-branes in gauge theory 
 side. We argue that the horizon is only an approximate concept at large-N\
 ; it becomes obscure\, or 'disappear'\, at finite-N. We discuss how this 
 picture is related to the evaporation described in the earlier part of the
  talk.
LOCATION:BSP\, 626
STATUS:CANCELLED
END:VEVENT
END:VCALENDAR