Disk Amplitudes in Two-Dimensional Open String Theories

Details Disk Amplitudes in Two-Dimensional Open String Theories Disk Amplitudes in Two-Dimensional Open String Theories

1992-03-02

arxiv.org/abs/hep-th/9203002v1

Physics

High Energy Physics

High Energy Physics - Theory

11 pages (A talk given at the Workshop on New Aspect of Quantum Field Theory, Institute for Nuclear Study, University of Tokyo

Scientific paper

Disk amplitudes of tachyons in two-dimensional open string theories (two-dimensional quantum gravity coupled to $c \leq 1$ conformal field theories) are obtained using the continuum Liouville field approach. The structure of momentum singularities is different from that of sphere amplitudes and is more complicated. It can be understood by factorizations of the amplitudes with the tachyon and the discrete states as intermediate states.

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