title: Naked Black Hole Firewalls.
abstract: In the firewall proposal, it is assumed that the firewall lies near the event horizon and should not be observable except by infalling observers, who are presumably terminated at the firewall. However, if the firewall is located near where the horizon would have been, based on the spacetime evolution up to that time, later quantum fluctuations of the Hawking emission rate can cause the "teleological" event horizon to have migrated to the inside of the firewall location, rendering the firewall naked. In principle, the firewall can be arbitrarily far outside the horizon. This casts doubt about the notion that firewalls are the "most conservative" solution to the information loss paradox.
authors.affiliation: Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.|Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University, California 94305, USA.
authors.forename: Pisin
authors.initials: P
authors.lastname: Chen
authors.affiliation: Nordita, KTH Royal Institute of Technology & Stockholm University, Roslagstullsbacken 23, SE-106 91 Stockholm, Sweden.
authors.forename: Yen Chin
authors.initials: YC
authors.lastname: Ong
authors.affiliation: Theoretical Physics Institute, University of Alberta, Edmonton, Alberta T6G 2E1, Canada.
authors.forename: Don N
authors.initials: DN
authors.lastname: Page
authors.affiliation: Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan.
authors.forename: Misao
authors.initials: M
authors.lastname: Sasaki
authors.affiliation: Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan.
authors.forename: Dong-Han
authors.initials: DH
authors.lastname: Yeom