1995 Fiscal Year Final Research Report Summary
Free Nonperturbative effects in quantum gravity and string theory
| Project/Area Number |
06640420
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
素粒子・核・宇宙線
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| Research Institution | NATIONAL LABORATORY FOR HIGH ENERGY PHYSICS |
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Principal Investigator |
KAWAI Hikaru NATIONAL LABORATORY FOR HIGH ENERGY PHYSICS Dept of Physus, Professor, 物理研究部, 教授 (80211176)
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| Project Period (FY) |
1994 – 1995
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| Keywords | String theory / quantum gravity / constructive / complex structure of the wordsheet / 2+epsilon dimensional gravity / string field / nonpertubative effects in string theory / operator product expansion in quantum gravity |
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| Research Abstract |
It is important to make constructive definitions of quantum gravity and the string thory in such a way that various physical quantities can be obtained at least by nemerical calaulations. As basic steps in this direction we performed the following projects :
1.In order to construct a local field theory which represeuts the string theory, we proved numerically that the complex structure can be introdnced on a discretized worldsheet comesponding to C*1 matrix models.
2.We developed a systeratic method for epsilon-expansion in 2+epsilon dimensional quantum gravity.
3.The string field theory was developed further and formulated in a back-ground indeperdent way.
4.The short distance behavor of space-time fluctuations was investigated by considering on operator product expansion in quantum gravity.
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