Hagedorn transition and chronology protection in string theory. (English) Zbl 1120.81066
Fiziev, Plamen P. (ed.) et al., Gravity, astrophysics and strings @ the Black Sea. Proceedings of the 3rd advanced research workshop, Kiten, Bulgaria, June 13–20, 2005. Sofia: St. Kliment Ohridski University Press (ISBN 978-954-07-2422-5/hbk). 142-156 (2006).
Summary: String theory is conjectured to be chronologically protected due to condensation of light winding states near closed null curves. Such condensation triggers a Hagedorn phase transition, whose end point is expected to have good chronology. We support this conjecture by studying strings in the O-plane orbifold, where we explicitly see winding states condensing in the pathological region of space-time. The string partition function has infrared divergences associated with the condensation and exhibits Hagedorn behavior, signaling at a phase transition. Contrary to common lore, chronology is protected through an infrared effect.
For the entire collection see [Zbl 1110.83002].
For the entire collection see [Zbl 1110.83002].
MSC:
| 81T30 | String and superstring theories; other extended objects (e.g., branes) in quantum field theory |
| 83E30 | String and superstring theories in gravitational theory |
| 83C47 | Methods of quantum field theory in general relativity and gravitational theory |
| 83F05 | Relativistic cosmology |
