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Relating chronology protection and unitarity through holography
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SYSNO ASEP 0358465 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Relating chronology protection and unitarity through holography Author(s) Raeymaekers, Joris (FZU-D) RID, ORCID
Van den Bleeken, D. (US)
Vercnocke, B. (BE)Source Title Journal of High Energy Physics. - : Springer - ISSN 1126-6708
Roč. 2010, č. 4 (2010), s. 1-9Number of pages 9 s. Language eng - English Country US - United States Keywords AdS-CFT correspondence ; models of quantum gravity ; classical theories of gravity Subject RIV BF - Elementary Particles and High Energy Physics CEZ AV0Z10100502 - FZU-D (2005-2011) UT WOS 000277473100049 DOI 10.1007/JHEP04(2010)021 Annotation 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 AdS3 whose backreaction produces a region of Goedel 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. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2012
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