Topology Changes in ( 2 + 1 ) - Dimensional Quantum
نویسندگان
چکیده
February 3, 1998 Topology Changes in (2+1)-Dimensional Quantum Gravity Yoshihisa FUJIWARA, Saburo HIGUCHI1 , Akio HOSOYA2 , Takashi MISHIMA3 and Masaru SIINO Department of Physics, Tokyo Institute of Technology, Oh-Okayama Meguro-ku, Tokyo 152, Japan ABSTRACT We study topology changing processes in (2+1)-dimensional quantum gravity with negative cosmological constant. By playing the `gluing-many-polyhedra game' for hyperbolic geometry, we explicitly construct an in nite number of di erent instanton-like solutions. These solutions can be used to evaluate various topology changing amplitudes in the WKB approximation.
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