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1994 Fiscal Year Final Research Report Summary

Phase Transitions in Dense Astrophysical Plasmas

Research Project

Project/Area Number 04455010
Research Category

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

Allocation TypeSingle-year Grants
Research Field 広領域
Research InstitutionThe University of Tokyo

Principal Investigator

ICHIMARU Setsuo  The University of Tokyo, Graduate School of Science Professor, 大学院・理学系研究科, 教授 (80010734)

Co-Investigator(Kenkyū-buntansha) OGATA Shuji  The University of Tokyo Graduate School of Science Research Assistant, 大学院・理学系研究科, 助手 (90251404)
Project Period (FY) 1992 – 1994
KeywordsDense Plasma / Equation of State / Astrophysical Dense Matter / Partially Ionized Matter / Electric and Thermal Transport / Radiative Transport / Ultrahigh Pressure Metal / Nuclear Fusion
Research Abstract

Followings are the new findings :
1. Equation of State and Phase Diagrams for Dense Multi-Ionic Mixture Plasmas
Equations of state for dense multi-ionic mixture plasmas were evaluated for both fluid and solid phases by the Monte Carlo simulation method. The accuracy of the results has been confirmed through a sum-rule analysis of the free energy. Phase diagrams for various BIMs appropriate to white-dwarf interiors were constructed.
2.Equation of State, Metallization, and Energy Transport in Dense Stellar Matter
Equations of state for partially ionized dense stellar matter were investigated by taking into account physical effects of strong coupling between atoms and plasma particles. Electric and thermal resistivities and free-free opacities were calculated in such matter.
3. Thermal Enhancement of Pycnonuclear Reaction rates in Dense Coulomb Solids
Through a numerical solution to the Schrodinger equation of scattering between nearest-neighbor nuclei in the lattice potential, the thermal enhancement factor of the pycnonuclear rates were newly evaluated for the entire density-temperature domain of Coulomb solids.
4. Nuclear Fusion in Dense Ultrahigh Pressure Metals
Combining concepts of pycnonuclear reactions at low temperatures and their enhancement due to strong internuclear Coulombic correlations, we presented concrete cases of a "supernova on the earth" scheme for fusion researches.
5. Equation of State and Melting Transition in Quantum Coulomb-Solids
The free energy of a one-component plasma in a crystalline state was calculated by a quantum Monte Carlo simulation method. The free-energy formula were applied for calculation of the melting curves in dense carbon and helium materials.
6. Cluster-Model Study of Many-Body Correlations in Dense Coulomb Matter
Equations of state for Coulomb clusters (number of particles are 2 to 60) were evaluated by a simulation method. A novel model for the Coulomb fiuid was thereby constructed.

  • Research Products

    (48 results)

All Other

All Publications (48 results)

  • [Publications] S.Ogata: "Equations of State and Phase Diagrams for Dense Multi-Ionic Mixture Plasmas" Phys.Rev.E. 48. 1339-1344 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru: "Electron-Ion Correlations and Elementary Processes in Dense Liquid Metallic Hydrogen" in Strongly Coupled Plasma Physics,edited by H.M.Van Hron and S.Ichmaru (Univ.of Rochester Pres,Rochester,N.Y.).31-40 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ogata: "Microscopic Correlations and Phase Diagrams for Dense Multi-Ionic Plasmas21GC03:inStrongly Coupled Plasma Physics,edited by H.M.Van Horn and S.Ichimaru(Univ.of Rochester Press,Rochester,N.Y.)." 53-62 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Tsuruta: "Coulomb Clusters-Binding Energies,Microstructures,Shell Model,and Dynamic Stabilities" in Strongly Coupled Plasma Physics,edited by H.M.Van Horn and S.Ichimaru(Univ.of Rochester Press,Rochester,N.Y.).23GE04:1993. 419-512

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Iyetomi: "Quantum Monte Carlo Simulation Study of Free Energies and Melting Transitions in Coulomb Solids" in Strongly Coupled Plasma Physics,edited by H.M.Van Horm ana S.Ichimaru(Univ.of Rochester Press,Rochester.N.Y.).23GE05:1993. 435-444

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Iyetomi: "Density-Functional Study of Antiferromagnetic Spin Correlations in Layered Electrons:Conductive Spin-Density-Wave States" Phys.Rev.B. 49. 11900-11909 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ogata: "Equations of State and Phase Diagrams for Dense Multi-Ionic Mixture Plasmas" Phys.Rev.E. 48. 1339-1344 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru: "Electron-Ion Correlations and Elementary Processes in Dense Liquid Metallic Hydrogen" in Strongly Coupled Plasma Physics,edited by H.M.Van Horn and S.Ichimaru(Univ.of Rochester Press,Rochester,N.Y.).23GE08:1993. 31-40

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ogata: "Microscopic Correlations and Phase Diagrams for Dense Multi-Ionic Plasmas21GC09:in Strongly Coupled Plasma Physics,edited by H.M.Van Horn and S.Ichimaru(Univ.of Rochester Press,Rochester,N.Y.).23GE09:1993" 53-62

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Tsuruta: "Coulomb, Clusters-Binding Energies,Microstructures,Shell Model,and Dynamic Stabilities" in Strongly Coupled Plasma Physics,edited by H.M.Van Horn and S.Ichimaru(Univ.of Rochester Press,Rochester,N.Y.).23GE10:1993. 419-512

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Iyetomi: "Quantum Monte Carlo Simulation Study of Free Energies and Melting Transitions in Coulomb Solids" in Strongly Coupled Plasma Physics,edited by H.M.Van Horn and S.Ichimaru(Univ.of Rochester Press,Rochester,N.Y.).23GE11:1993. 435-444

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Iyetomi: "Density-Functional Study of Antiferromagnetic Spin Correlations in Layered Electrons:Conductive Spin-Density-Wave States" Phys.Rev.B. 49. 11900-11909 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru: "Thermal Enhancement of the Pycnonuclear Rates in Dense Stellar Matter" Publ.Astron.Soc.Japan. 46. 285-288 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru: "Short-Range Screening Potentials for Classical Coulomb Fluids:Monte Carlo Sampling and Clustre Model Studies" Phys.Rev.E. 50. 2977-2985 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Tsuruta: "Dense Plasma as a Statistical Ensemble of Coulomb Clusters:A New Paradigm21GC15:in Proceedings of the Nonneutral Plasma Workshop,Berkeley,CA,U.S.A.,July 18,1994," (出版予定). (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru: "Nuclear Reactions in Dense Matter21GC16:in Elementary Processes in Dense Plasmas,Edited by S.Ichimaru and S.Ogata (Addison-Wesley,MA)." 113-124 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ogata: "Equation of State,Metallization,and Energy Transport in Dense Stellar Matter" in Elementary Processes in Dense Plasmas,edited by S.Ichimaru and S.Ogata(Addison-Wesley,MA).146-164 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Kitamura: "Pycnonuclear Reaction Rates in Stellar Interiors:Thermal Enhancement" Astrophys.J.438. 300-307 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru: "Enhanced Pycnonuclear Reactions in Ultrahigh Pressure Metals" submitted to Phys.Rev.Lett.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Kitamura: "Electric and Thermal Resistivities in Dense High-Z Plasmas" submitted to Phys.Rev.E.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ogata: "Reply to “Comment on ‘Equation of state and phase diagrams for dense multi-ionic mixture plasmas'"" submitted to Phys.Rev.E.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru(Editor): "Strongly Coupled Plasma Physics" Univ.of Rochester Press(Rochester,N.Y.), 506 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru: "Statistical Plasma Physics II:Condensed Plasmas" Addison-Wesley, 308 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru(Editor): "Elementary Processes in Dense Plasmas:The Proceedings of the Oji International Seminar" Addison-Wesley, 503 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ichimaru, S.Ogata, and H.M.Van Horn: "Pycnonuclear Reaction Rates for Binary Ionic Mixtures" Astrophys.J.Lett.401. L35-L38 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Iyetomi, S.Ogata, and S.Ichimaru: "Bridge Functions and Improvement on the Hypernetted-Chain Approximation for Classical One-Component Plasmas" Phys.Rev.A. 46. 1051-1058 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ichimaru: "Nuclear Fusion in Dense Plasmas" Rev.Mod.Phys.65. 255-299 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ogata, S.Ichimaru, and H.M.Van Horn: "Thermonuclear Reaction Rates for Dense Binary-Ionic Mixtures" Astrophys.J.417. 265-272 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Tsuruta and S.Ichimaru: "Binding Energy, Microstructure, and Shell Model of Coulomb Clusters" Phys. Rev.A. 48. 1339-1344 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Iyetomi, S.Ogata, and S.Ichimaru: "Quantum Monte Carlo Simulation Study of Free Energies and Melting Transitions in Coulomb Solids" Phys.Rev.B. 47. 11703-11711 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ogata, H.Iyetomi, S.Ichimaru, and H.M.Van Horn: "Equations of State and Phase Diagrams for Dense Multilonic Mixture Plasmas" Phys.Rev.E. 48. 1339-1344 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ichimaru: "Electron-Ion Correlations and Elementary Processes in Dense Liquid Metallic Hydrogen" in Strongly Coupled Plasma Physics, edited by Van Horn and Ichimaru (Univ.of Rochester, N.Y., 1993). 31-40

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ogata, H.Iyetomi, S.Ichimaru, and H.M.Van Horn: "Microscopic Correlations and Phase Diagrams for Dense Multi-Ionic Plasmas" in Strongly Coupled Plasma Physics, edited by Van Horn and Ichimaru (Univ.of Rochester, N.Y., 1993). 53-62

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Tsuruta and S.Ichimaru: "Coulomb Clusters-Binding Energies, Microstructures, Shell Model, and Dynamic Stabilities" in Strongly Coupled Plasma Physics, edited by Van Horn and Ichimaru (Univ.of Rochester, N.Y., 1993). 419-512

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Iyetomi, S.Ogata, and S.Ichimaru: "Quantum Monte Carlo Simulation Study of Free Energies and Melting Transitions in Coulomb Solids" in Strongly Coupled Plasma Physics, edited by Van Horn and Ichimaru (Univ.of Rochester, N.Y., 1993). 435-444

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Iyetomi and S.Ichimaru: "Density-Functional Study of Antiferromagnetic Spin Correlations in Layred Electrons : Conductive Spin-Density-Wave States" Phys.Rev.B. 49. 11900-11909 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ichimaru, H.Kitamura, and S.Ogata: "Thermal Enhancement of the Pycnonuclear Rates in Dense Stellar Matter" Publ.Astron.Soc.Japan. 46. 285-288 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ichimaru, S.Ogata, and K.Tsuruta: "Short-Range Screening Potentials for Classical Coulomb Fluids : Monte Carlo Sampling and Cluster Model Studies" Phys.Rev.E. 50. 2977-2985 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Tsuruta and S.Ichimaru: "Dense Plasma as a Statistical Ensemble of Coulomb Clusters : A New Paradigm" in Proceedings of the Nonneutral Plasma Workshop, Berkeley, CA,U.S.A., July 18,1994., to be published.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ichimaru and H.Kitamura: "Nuclear Reactions in Dense Matter" in Elementary Processes in Dense Plasmas, edited by Ichimaru and Ogata (Addison-Wesley, 1995). 113-124

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ogata, H.Kitamura, and S.Ichimaru: "Equation of State, Metallization, and Energy Transport in Dense Stellar Matter" in Elementary Processes in Dense Plasmas, edited by S.Ichimaru and S.Ogata (Addison-Wesley, MA,1995). 145-164

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Kitamura and S.Ichimaru: "Pycnonuclear Reaction Rates in Stellar Interiors : Thermal Enhancement" Astrophys.J.438. 300-307 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ichimaru and H.Kitamura: "Enhanced Pycnonuclear Reactions in Ultarhigh Pressure Metals" submitted to Phys.Rev.Lett.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Kitamura and S.Ichimaru: "Electric and Thermal Resistivities in Dense High-Z Plasmas" submitted to Phys.Rev.E.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ogata and S.Ichimaru: "Reply to "Comment on 'Equation of state and phase diagrams for dense multi-ionic mixture plasmas'"" submitted to Phys.Rev.E.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.M.Van Horn and S.Ichimaru (Editors): Strongly Coupled Plasma Physics. (Univ.of Rochester Press, Rochester, N.Y., 1993, 506

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ichimaru: Statistical Plasma Physics II : Condensed Plasmas. (Addison-Wesley, Reading, MA,1994, 308

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ichimaru and S.Ogata (Editors): Elementary Processes in Dense Plasmas. The Proceedings of the Oji International Seminar, Tomakomai, Japan, June 27-July 1,1994 (Addison-Wesley, Reading, MA,1995), 503

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1996-04-15  

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