BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Complementarity vs. Firewalls:  Are there large quantum effects ne
 ar black hole horizons? - Donald Marolf\, UCSB Physics Department
DTSTART:20121024T131500Z
DTEND:20121024T141500Z
UID:TALK41180@talks.cam.ac.uk
CONTACT:Dr Anatoly Dymarsky
DESCRIPTION:We argue that the following three statements cannot all be tru
 e: (i) Hawking radiation is in a pure state\, (ii) the information carried
  by the radiation is emitted from the region near the horizon\, with low e
 nergy effective field theory valid beyond some microscopic distance from t
 he horizon\, and (iii) the infalling observer encounters nothing unusual a
 t the horizon. Perhaps the most conservative resolution is that the infall
 ing observer burns up at the horizon. Alternatives would seem to require n
 ovel dynamics that nevertheless cause notable violations of semiclassical 
 physics at macroscopic distances from the horizon
LOCATION:MR2\, Centre for Mathematical Sciences
END:VEVENT
END:VCALENDAR