Advances in Theoretical and Mathematical Physics

Volume 7 (2003)

Number 2

Correlators in Timelike Bulk Liouville Theory

Pages: 369 – 379



Andrew Strominger

Tadashi Takayanagi


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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