Title: Relating chronology protection and unitarity through holography
Authors: Raeymaekers, Joris ×
Van den Bleeken, Dieter
Vercnocke, Bert #
Issue Date: Apr-2010
Publisher: Springer
Series Title: Journal of high energy physics issue:4 pages:1-9
Article number: 021
Abstract: We give a simple nonsupersymmetric example in which chronology protection follows from unitarity and the AdS/CFT correspondence. We consider a ball of homogeneous, rotating dust in global AdS(3) whose backreaction produces a region of Godel space inside the ball. We solve the Israel matching conditions to find the geometry outside of the dust ball and compute its quantum numbers in the dual CFT. When the radius of the dust ball exceeds a certain critical value, the spacetime will contain closed timelike curves. Our main observation is that precisely when this critical radius is exceeded, a unitarity bound in the dual CFT is violated, leading to a holographic argument for chronology protection.
ISSN: 1029-8479
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Theoretical Physics Section
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science