1992/01/31 by Yoichiro Matsumura, Norisuke Sakai, Yoshiaki Tanii · 1 citation
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Black Holes and Theoretical Physics #Noncommutative and Quantum Gravity Theories #hep-th
paper · pdf · doi:10.1016/0550-3213(93)90220-j
published as Nucl.Phys. B395 (1993) 354-370 · 26 pages
arxiv created 1992/02/04 · openalex publication_date 1993/04/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
All the three point couplings involving tachyons and/or discrete states are obtained in c=1 two-dimensional (2-D) quantum gravity by means of the operator product expansion (OPE). Cocycle factors are found to be necessary in order to maintain the analytic structure of the OPE, and are constructed explicitly both for discrete states and for tachyons. The effective action involving tachyons and discrete states is worked out to summarize all of these three point couplings.