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Large Scale Quantum Simulations Plasmas

Research Project

Project/Area Number 11480110
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field プラズマ理工学
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

TOTSUJI Hiroo  Okayama University, Graduate School of Natural Science and Technology, Professor, 大学院・自然科学研究科, 教授 (40011671)

Co-Investigator(Kenkyū-buntansha) TOTSUJI Chieko  Okayama University, Faculty of Engineering, Research Assistant, 工学部, 助手 (20253007)
TSURUTA Kenji  Okayama University, Graduate School of Natural Science and Technology, Associate Professor, 大学院・自然科学研究科, 助教授 (00304329)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥5,900,000 (Direct Cost: ¥5,900,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥4,900,000 (Direct Cost: ¥4,900,000)
Keywordslarge scale simulation of plasma / density functional molecular dynamics / fast multipole method (FMM) / strongly-coupled plasma / liquid metallic hydrogen / parallel PC culster / 水素プラズマ / 密度汎関数法 / 量子シミュレーション / 分子動力学 / 並列計算 / PCクラスター / 密度汎関数 / 大規模分子動力学シミュレーション / 高速多重極展開 / 量子プラズマ / 圧力電離 / 液体金属水素
Research Abstract

In principle, electrons in plasmas are quantum objects. Except for the cases at high temperatures and with low densities where the quantum nature of electrons does not play an important role, we need to take it into account. One of typical examples is the implosion process in the inertial confinement fusion where ions and elecrons are strongly coupled.
The lack of long-range order of crystalline lattice makes theoretical treatment of quantum plasmas difficult and numerical simulations become an important method of analysis. The quantum simulation usually requires large computational resources and the applicable system size is limited. In addition to this, we have another difficulty coming from the long-range nature of the Coulomb interaction. The purpose of this research project is to find solutions for these problems.
We have applied the density functional molecular dynamics (DFMD) to overcome the first point in 2. In this method, the electron density is regard ed as a dynamic variable … More and one can perform large scale quantum simulations. We have analyzed the hydrogen plasma in the domain of liquid metal and have shown that quantum simulations with 1000 electrons are affordable. We have also confirmed that, by employing parallel PC clusters, we can simulate systems larger than the latter by one or two orders of magnitude. We have also checked the accuracy of DFMD by comparing the results with those of first principle simulations.
To solve the second problem in 2, we have developed the computation code on the basis of the Fast Multipole method(FMM). We have applied our code to Coulomb clusters and found the critical system size for its structural phase transition. We have also applied our code to the Yukawa system which can be regarded as the simplest approximation for ions in quantum plasmas. The Yukawa system serves as a model of dusty plasmas whose behavior is an important subject in relation to plasma processing. Applications to Yukawa systems provide us with not only a reference system but also useful results for real systems. Less

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] H.Totsuji: "Large Scale Quantum Simulation of Strongly Coupled Plasmas on a Parallel PC Cluster"Journal de Physique IV. Vol.10. Pr5-267-Pr5-270 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Totsuji: "Density Functional Molecular Dynamics of Hydrogen Plasma"Proceedings of 25th International Conference on Phenomena in Ionized Gases (XXV ICPIG). Vol.3. 23-24 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Kishimoto: "Parallel Molecular Dynamics of Coulomb Clusters"Proceedings of the International Congress on Plasma Physics 2000. Vol.1. 41-45 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Kishimoto: "On the Madelung energy of spherical Coulomb clusters"Physics Letters A. Vol.281. 256-259 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Totsuji: "Quantum Simulation of Hot Dense Plasmas"Proceedings of 2nd International Conference on Inertial Fusion Sciences and Applications. 5 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Totsuji: "Competition between two forms of ordering in finite Coulomb clusters"Physics Review Letters. Vol.88 No.12. 125002-1-125002-4 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Totsuji: "Frontiers in Dusty Plasmas"Elsevier. 6 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Totsuji.: "Large Scale Quantum Simulation of Strongly Coupled Plasmas on a Parallel PC Cluster"Journal de Physique IV .. Vol.10. pr5-267-pr5-270 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Totsuji.: "Density Functional Molecular Dynamics of Hydrogen Plasma"Proceedings of 25th International Conference on Phenomena in Ionized Gases (XXV ICPIG). Vol.3. 23-24 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T, Kishimoto.: "Parallel Molecular Dynamics of Coulomb Clusters"Proceedings of the International Congress on Parallel Plasma Physics 2000. Vol.1. 41-45 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T, Kishimoto.: "On the Madelung energy of spherical Coulomb clusters"Physics Letters A. Vol.281. 256-259 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H, Totsuji: "Quantum Simulation of Hot Dense Plasmas"Proceedings of 2nd International Conference on Inertial Fusion Sciences and Applications. 5 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Totsuji: "Competition between two forms of ordering in finite Coulomb clusters"Physics Review Letters. Vol.88, No.12. 125002-1-125002-4 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Totsuji: "Sructures and Structural Transitions in Strongly-Coupled Yukawa Dusty Plasmas and Mixtures"Proceedings of the 2nd International Conference on the Physics of Dusty Plasmas, Frontiers in Dusty Plasmas, Elsevier. 141-146 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Totsuji: "Density Functional Molecular Dynamics of Hydrogen Plasma"Proceedings of 25th International Conference on Phenomena in lonized Gases(XXV ICPIG). Vol.3. 23-24 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Kishimoto: "Parallel Molecular Dynamics of Coulomb Clusters"Proceedings of the International Congress on Plasma Physics2000. Vol.1. 41-45 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Kishimoto: "On the Madelung energy spherical Coulomb clusters"Physics Letters A. Vol.281. 256-259 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] K.Tsuruta: "Parallel Tight-Binding Molecular Dynamics for High Temperature Neck Formation Processes of Nanocrystalline Silicon Carbide"Materials Transactions. Vol.42 No.11. 2261-2265 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Totsuji: "Quantum Simulation of Hot Dense Plasmas"Proceedings of 2nd International Conference on Inertial Fusion Sciences and Applications. 4 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Totsuji: "Competition between two forms of ordering in finite Coulomb clusters"Physice Review Letters. Vol.88 No.12. 125002-1-125002-4 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Totsuji: "Large scale quantum simulation of strongly coupled plasmas on a PC cluster"J.Phys.IV (France). 10,Pr5. 267-270 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] C.Totsuji: "Structure and dynamics of Yukawa dusty plasmas and dusty plasma mixtures"J.Phys.IV (France). 10,Pr5. 425-428 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Totsuji: "Strongly coupled nonneutral plasmas : Equilibrium and relaxation in two-component plasmas in Penning-Malmberg trap"J.Phys.IV (France). 10,Pr5. 271-274 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Totsuji: "Structure and melting of two-dimensional dust crystals"Phys.Plasmas. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Kishimoto: "On the Madelung energy of spherical Coulomb clusters"Phys.Lett.A. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 東辻浩夫: "身近な強結合プラズマ"プラズマ・核融合学会誌. 75・9. 1052-1056 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 東辻浩夫: "高エネルギー密度プラズマの物性"プラズマ・核融合学会誌. 75・増刊2. 16-18 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H. Totsuji: "Non-Neutral Plasma Physics III"American Institute of Physics. 12 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H. Totsuji: "Frontiers in Dusty Plasmas"Elsevier Science Ltd.. 6 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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