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oai:ir.soken.ac.jp:00003635 2023-06-20T14:31:59Z 1:281 1:284

Grand-canonical simulation of 4D simplicial quantum gravity Grand-canonical simulation of 4D simplicial quantum gravity 洞田, 慎一 HORATA, Shinichi EGAWA, Hiroshi S YUKAWA, Tetsuyuki metadata only access © 2003 Published by Elsevier B.V. A thorough numerical examination for the field theory of 41) quantum gravity (QG) with a special emphasis on the conformal mode dependence has been studied. More clearly than before, we obtain the string susceptibility exponent of the partition function by using the Grand-Canonical Monte-Carlo method. Taking thorough care of the update method, the simulation is made for 4D Euclidean simplicial manifold coupled toNx scalar fields andNA U(1) gauge fields. The numerical results suggest that 4D simplicial quantum gravity (SQG) can be reached to the continuum theory of 41) QG. We discuss the significant property of 4D SQG. Elsevier 2003-05 eng journal article https://ir.soken.ac.jp/records/3635 https://doi.org/10.1016/S0920-5632(03)80486-3 10.1016/S0920-5632(03)80486-3, 09205632 Nuclear Physics B - Proceedings Supplements Nuclear Physics B - Proceedings Supplements 119 921 923