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arXiv · hep-th/9304044

Chronology Protection in Two-Dimensional Dilaton Gravity

Takashi Mishima·Akika Nakamichi
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Abstract

The global structure of 1 + 1 dimensional compact Universe is studied in two-dimensional model of dilaton gravity. First we give a classical solution corresponding to the spacetime in which a closed time-like curve appears, and show the instability of this spacetime due to the existence of matters. We also observe quantum version of such a spacetime having closed timelike curves never reappear unless the parameters are fine-tuned.

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Takashi Mishima, Akika Nakamichi. 1993-04-11. Chronology Protection in Two-Dimensional Dilaton Gravity. https://doi.org/10.1103/physrevd.49.595

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