The Experts below are selected from a list of 114 Experts worldwide ranked by ideXlab platform

Hitoshi Higurashi - One of the best experts on this subject based on the ideXlab platform.

  • The Generating Functional of the Non-Equilibrium Process The Case of Macrovariable
    Progress of Theoretical Physics, 1991
    Co-Authors: Masayoshi Sumino, Reijiro Fukuda, Hitoshi Higurashi
    Abstract:

    The generating functional of the Non-Equilibrium Process is discussed and applied to the macroscopic system in order to derive the equation of motion of the macrovariables. The detailed diagrammatical rule for evaluating the generating functional is given for the arbitrary initial distribution. The propagator which is independent of the initial condition is shown to contain only a single retarded propagator. For the case of macrovariables a compact expression for the generating functional is obtained. A simple example is also discussed

  • The Generating Functional of the Non-Equilibrium Process
    1991
    Co-Authors: Masayoshi Sumino, Reijiro Fukuda, Hitoshi Higurashi
    Abstract:

    The generating functional of the Non-Equilibrium Process is discussed and applied to the macro­ scopic system in order to derive the equation of motion of the macro variables. The detailed diagrammatical rule for evaluating the generating functional is given for the arbitrary initial distribution. The propagator which is independent of the initial condition is shown to contain only a single retarded propagator. For the case of macrovariables a compact expression for the generat­ ing functional is obtained. A simple example is also discussed.

E. Takayama‐muromachi - One of the best experts on this subject based on the ideXlab platform.

  • Pulsed Laser Deposition of T, T* and T′ Lai1.85Y0.15CuO4
    AIP Conference Proceedings, 2006
    Co-Authors: S. C. Wimbush, E. Takayama‐muromachi
    Abstract:

    Following a report of superconductivity in nominally undoped T′ lanthanum cuprates which, if verified, will have wide‐ranging implications for the understanding of the mechanism of high‐temperature superconductivity, an attempt has been made to independently reproduce or otherwise elucidate the reported results. Utilising a different preparation technique from the original report, thin film samples of nominally undoped La3+ 1.85Y3+0.15CuO4 have been prepared by pulsed laser deposition in all three structural variations reported for the system, labeled T, T * and T′. The unique nature of pulsed laser deposition as a highly non‐equilibrium Process has been exploited in the fabrication of the metastable T* and T′ phases, allowing a significant improvement in sample quality over that obtainable by the use of chemical pressure and epitaxial strain alone.

Masayoshi Sumino - One of the best experts on this subject based on the ideXlab platform.

  • The Generating Functional of the Non-Equilibrium Process The Case of Macrovariable
    Progress of Theoretical Physics, 1991
    Co-Authors: Masayoshi Sumino, Reijiro Fukuda, Hitoshi Higurashi
    Abstract:

    The generating functional of the Non-Equilibrium Process is discussed and applied to the macroscopic system in order to derive the equation of motion of the macrovariables. The detailed diagrammatical rule for evaluating the generating functional is given for the arbitrary initial distribution. The propagator which is independent of the initial condition is shown to contain only a single retarded propagator. For the case of macrovariables a compact expression for the generating functional is obtained. A simple example is also discussed

  • The Generating Functional of the Non-Equilibrium Process
    1991
    Co-Authors: Masayoshi Sumino, Reijiro Fukuda, Hitoshi Higurashi
    Abstract:

    The generating functional of the Non-Equilibrium Process is discussed and applied to the macro­ scopic system in order to derive the equation of motion of the macro variables. The detailed diagrammatical rule for evaluating the generating functional is given for the arbitrary initial distribution. The propagator which is independent of the initial condition is shown to contain only a single retarded propagator. For the case of macrovariables a compact expression for the generat­ ing functional is obtained. A simple example is also discussed.

Jacob I. Mackenzie - One of the best experts on this subject based on the ideXlab platform.

  • Ytterbium-doped mixed sesquioxides grown by pulsed laser deposition
    2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO Europe-EQEC), 2017
    Co-Authors: Jake J. Prentice, James A. Grant-jacob, Stephen J. Beecher, David P. Shepherd, Robert W. Eason, Jacob I. Mackenzie
    Abstract:

    Summary form only given. Sesquioxides have been identified as having great potential for use as host materials for lasers due to their exceptional thermomechanical and optical properties as well as crystallographic properties well suited to the incorporation of rare-earth dopants [1]. However, fabrication of sesquioxide hosts is challenging due to their high melting points (>2400°C), making it difficult to grow high-quality crystals from a melt. Pulsed laser deposition (PLD) is a well-established method for growing thin-films of a variety of materials, including doped sesquioxides, without the need for attaining such temperatures. It is also possible to exploit the Non-Equilibrium Process to grow crystals not readily achieved via standard techniques, such as ternary or quaternary mixtures. In this paper we report the growth and characterization of Yb-doped mixed lutetia and scandia films, which are of interest for ultrashort-pulse (USP) generation in thin-disk or waveguide lasers/amplifiers [2].

S. C. Wimbush - One of the best experts on this subject based on the ideXlab platform.

  • Pulsed Laser Deposition of T, T* and T′ Lai1.85Y0.15CuO4
    AIP Conference Proceedings, 2006
    Co-Authors: S. C. Wimbush, E. Takayama‐muromachi
    Abstract:

    Following a report of superconductivity in nominally undoped T′ lanthanum cuprates which, if verified, will have wide‐ranging implications for the understanding of the mechanism of high‐temperature superconductivity, an attempt has been made to independently reproduce or otherwise elucidate the reported results. Utilising a different preparation technique from the original report, thin film samples of nominally undoped La3+ 1.85Y3+0.15CuO4 have been prepared by pulsed laser deposition in all three structural variations reported for the system, labeled T, T * and T′. The unique nature of pulsed laser deposition as a highly non‐equilibrium Process has been exploited in the fabrication of the metastable T* and T′ phases, allowing a significant improvement in sample quality over that obtainable by the use of chemical pressure and epitaxial strain alone.