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Free Nonperturbative effects in quantum gravity and string theory

Research Project

Project/Area Number 06640420
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 素粒子・核・宇宙線
Research InstitutionNATIONAL LABORATORY FOR HIGH ENERGY PHYSICS

Principal Investigator

KAWAI Hikaru  NATIONAL LABORATORY FOR HIGH ENERGY PHYSICS Dept of Physus, Professor, 物理研究部, 教授 (80211176)

Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1995: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1994: ¥800,000 (Direct Cost: ¥800,000)
KeywordsString 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 / 非摂動効果 / ストリングの場 / 真空の構造 / ダイナミカル単体分割 / 複素構造 / 数値計算
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.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] H. Kawai, N. Tsuda, T. Yukawa: "Complex structures defined on dynamically triangulated surfaces" Physics Letters B. 351. 162-168 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] N. Ishibashi, H. Kawai: "A background independent formulation of nonsritical string theory" Physics Letters B. 352. 75-82 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M. Ikehara, N. Ishibashi, H. Kawai, T. Mogami, R. Nakayama, N. Sasakura: "A Note on String Field theory in the Temporirl Gauge" Progress of Theoretical Physics Supplement. 118. 241-257 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] H.Kawai, N.Tsuda and T.Yukawa: "Complex structures defined on dyuamically triangulated surfaces" Physics Letlns B. 351. 162-168 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] N.Ishibashi and H.Kawai: "A background indepeudent formulation of noncritical string theory" Physics Letlns B. 352. 75-82 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Ikehara, N.Ishibashi, H.Kawai, T.Mogami, R.Nakayama and N.Sasakura: "A Note on String Field in the Temporal Gauge" Progress of Theovetical PHYSICS Supplement. 118. 241-257 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] H.Kawai,N.Tsuda,T.Yukawa: "Complex structures defined on dynamically triargulated surfaces" Physics Letters B. 351. 162-168 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] N.Ishibashi,H.Kawai: "A background independent formulation of noncritical string theory" Physics Letters B. 352. 75-82 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M.Ikehara,N.Ishibashi,H.Kawai,T.Mogami,R.Nakayama,N.Sasakura: "A Note on String Field Theory in the Temporal Gauge" Progress of Theorefical Physics Supplement. 118. 241-257 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M.Ikehara,N.Ishibashi,H.Kawai,T.Mogami,R.Nakayama,N.Sasakura: "Srring field theory in the temporal gamge" Phys.Rev.D. 50. 7467-7478 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Fukuma,N.Ishibashi,H.Kawai,M.Ninomiya: "Two-dimeusional quautum gravity in temporal gauge" Nucl.Phys.B. 427. 139-157 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Aida,Y.Kitazawa,H.Kawai,M.Ninomiya: "Conformal invarlancl and veuormalization group in quantuw grcvity" Nucl.Phys.B. 427. 158-180 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Ishibashi,H.Kawai: "String fiels theovy of C【less than or equal】1 noucritical s " Phys.Lett.B. 322. 67-78 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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