2008/04/30 by Kazuo Hosomichi · 2 citations
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Black Holes and Theoretical Physics #Noncommutative and Quantum Gravity Theories #hep-th
paper · pdf · doi:10.1088/1126-6708/2008/06/029
published as JHEP 0806:029,2008 · 14 pages, 1 figure, 1 reference added
openalex publication_date 2008/06/10 · arxiv created 2008/06/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/29
We study FZZT-branes and open string amplitudes in (p,q) minimal string theory. We focus on the simplest boundary changing operators in two-matrix models, and identify the corresponding operators in worldsheet theory through the comparison of amplitudes. Along the way, we find a novel linear relation among FZZT boundary states in minimal string theory. We also show that the boundary ground ring is realized on physical open string operators in a very simple manner, and discuss its use for perturbative computation of higher open string amplitudes.