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Correlators in Timelike Bulk Liouville Theory

Andrew Strominger·Tadashi Takayanagi
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Abstract

Liouville theory with a negative norm boson and no screening charge corresponds to an exact classical solution of closed bosonic string theory describing time-dependent bulk tachyon condensation. A simple expression for the two point function is proposed based on renormalization/analytic continuation of the known results for the ordinary (positive-norm) Liouville theory. The expression agrees exactly with the minisuperspace result for the closed string pair-production rate (which diverges at finite time). Puzzles concerning the three-point function are presented and discussed.

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Andrew Strominger, Tadashi Takayanagi. 2003-12-24. Correlators in Timelike Bulk Liouville Theory. https://arxiv.org/abs/hep-th/0303221

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