Phase structure of four dimensional simplicial quantum gravity
نویسندگان
چکیده
منابع مشابه
Phase Structure of Four Dimensional Simplicial Quantum Gravity
We present the results of a high statistics Monte Carlo study of a model for four dimensional euclidean quantum gravity based on summing over triangulations. We show evidence for two phases; in one there is a logarithmic scaling of the mean linear extent with volume, whilst the other exhibits power law behaviour with exponent 1 2 . We are able to extract a finite size scaling exponent governing...
متن کاملNonuniform measure in four-dimensional simplicial quantum gravity.
Four-dimensional euclidean quantum gravity has been studied as a discrete model based on dynamical triangulations by Ambjørn and Jurkiewicz and by Agishtein and Migdal. We discuss a particular implementation of a Monte Carlo simulation of simplicial quantum gravity. As an application we introduce a non-uniform measure and examine its effect on simple aspects of the mathematical geometry. We fin...
متن کاملCERN-TH.7149/94 ILL-(TH)-94-26 hep-lat/9401026 Phase Structure of Four Dimensional Simplicial Quantum Gravity
We present the results of a high statistics Monte Carlo study of a model for four dimensional euclidean quantum gravity based on summing over triangulations. We show evidence for two phases; in one there is a logarithmic scaling of the mean linear extent with volume, whilst the other exhibits power law behaviour with exponent 1 2 . We are able to extract a nite size scaling exponent governing t...
متن کاملScaling Structures in Four-dimensional Simplicial Gravity
H.S.Egawa , T.Hotta , T.Izubuchi b N.Tsuda c and T.Yukawa c, d a Department of Physics, Tokai University Hiratsuka, Kanagawa 259-12, Japan b Department of Physics, University of Tokyo Bunkyo-ku, Tokyo 113, Japan c National Laboratory for High Energy Physics (KEK), Tsukuba 305, Japan d Coordination Center for Research and Education, The Graduate University for Advanced Studies, Hayama-cho, Miura...
متن کامل0 KEK - TH - 685 Phase Structure of Four - dimensional Simplicial Quantum Gravity with a U ( 1 ) Gauge Field
The phase structure of four-dimensional simplicial quantum gravity coupled to U (1) gauge fields has been studied using Monte-Carlo simulations. The smooth phase is found in the intermediate region between the crumpled phase and the branched polymer phase. This new phase has a negative string susceptibility exponent, even if the number of vector fields (N V) is 1. The phase transition between t...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1994
ISSN: 0370-2693
DOI: 10.1016/0370-2693(94)91480-x