Holographic Protection of Chronology in Universes of the Godel Type

By Edward Boyda, Surya Ganguli, Petr Hořava, U. Varadarajan. 2002

149 citations recorded by the source corpus.

We analyze the structure of supersymmetric Godel-like cosmological solutions of string theory. Just as the original four-dimensional Godel universe, these solutions represent rotating, topologically trivial cosmologies with a homogeneous metric and closed timelike curves. First we focus on phenomenological aspects of holography, and identify the preferred holographic screens associated with inertial comoving observers in Godel universes. We find that holography can serve as a chronology protection agency: The closed timelike curves are either hidden behind the holographic screen, or broken by it into causal pieces. In fact, holography in Godel universes has many features in common with de Sitter space, suggesting that Godel universes could represent a supersymmetric laboratory for addressing the conceptual puzzles of de Sitter holography. Then we initiate the investigation of microscopic aspects of holography of Godel universes in string theory. We show that Godel universes are T-dual to pp-waves, and use this fact to generate new Godel-like solutions of string and M-theory by T-dualizing known supersymmetric pp-wave solutions.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/3b381967cbe5bd9896c5d07f3cb186b5d61883b2

How researchers see this paper

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In Astronomy and Astrophysics

1. T. Takayanagi
2. S. Ryu
3. Zdenek Stuchlík
4. J. Schee
5. T. Nishioka
6. R. Myers
7. V. Hubeny
8. Mark Van Raamsdonk

In Nuclear and High Energy Physics

1. T. Takayanagi
2. S. Ryu
3. T. Nishioka
4. R. Myers
5. V. Hubeny
6. Zdenek Stuchlík
7. J. Schee
8. M. Rangamani

Citations in the corpus

• Aspects of Holographic Entanglement Entropy (2006, background): “31 Recent discussions on these spaces from this viewpoint can be found e.g. in [76] and [ 77 ].”
• Appearance of Keplerian discs orbiting Kerr superspinars (2010, background): “There is an expectation that the pathological naked time machine is replaced by a correctly behaving stringy solution [24], being motivated by the resolution of the problems of the 4+1 SUSY black hole solution [11] where the pathological time machine region is replaced by a portion of the Godel Univ”