scholarly journals Moment equation approach to neoclassical transport theory

1977 ◽  
Author(s):  
S.P. Hirshman
Keyword(s):  
Transport Theory ◽  
Moment Equation ◽  
Equation Approach ◽  
Neoclassical Transport

scholarly journals Moment equation approach to neoclassical transport theory

1978 ◽  
Vol 21 (2) ◽  
pp. 224 ◽  
Author(s):  
Steven P. Hirshman
Keyword(s):  
Transport Theory ◽  
Moment Equation ◽  
Equation Approach ◽  
Neoclassical Transport

Balance-Equation Approach to Hot-Carrier Transport in Semiconductors

1992 ◽  
Vol 06 (07) ◽  
pp. 805-936 ◽  
Author(s):  
X.L. Lei ◽  
N.J.M. Horing
Keyword(s):  
Steady State ◽  
Balance Equation ◽  
Carrier Transport ◽  
Thermal Noise ◽  
Transport Theory ◽  
Equation Approach ◽  
Balance Equations ◽  
Hot Carrier ◽  
Linear And Nonlinear ◽  
And Diffusion

The balance-equation approach to nonlinear hot-carrier transport theory, formulated by Lei and Ting (1984), is addressed in this comprehensive review. A central feature is the role of strong electron-electron interactions in promoting rapid thermalization about the drifted transport state and the concomitant substantial simplification of the transport theory. This physical feature is embodied in the initial density matrix chosen to represent the unperturbed carrier system. Force and energy balance equations are formulated for the dc steady state, ac dynamic and transient cases of charge conduction, including memory effects. The scattering mechanisms include impurity and phonon interactions along with dynamic nonlocal screening effects due to carrier-carrier interactions. Both linear and nonlinear resistivities are discussed in the degenerate and nondegenerate statistical regimes. Interesting phenomena such as electron cooling and thermal noise and diffusion are discussed as well. Semiconductor microstructure transport is described for both linear and nonlinear hot carrier conduction. In this connection, quasi-2D-systems, heterojunctions, and quantum well superlattices are treated with attention to steady state, transient and high frequency transport, including, for example, superlattice plasmon resonance structure. Type-II superlattice transport is reviewed as well as type-I, and electron-hole drag is treated in conjunction with negative minority electron mobility in a quantum well. Multivalley semiconductors are discussed in some detail. Furthermore, attention is also focused on the center-of-mass velocity fluctuation, Langevin-type equation and thermal noise and diffusion for microstructures and multivalley systems. A number of particularly important phenomena are examined from the balance-equation point of view, such as nonequilibrium phonons, higher order scattering effects and weak localization, hydrodynamic equations for weakly nonuniform systems, and the intracollisional field effect. Alternative formulations and interpretations of the balance-equation approach are reviewed. The distinction between this many-particle, isothermal, balance-equation theory and the noninteracting (single-particle) adiabatic transport theory is discussed to clarify issues subject to controversy in the literature. Finally, we give a brief review of recent developments in the balance-equation approach: investigation of the distribution function in balance-equation theory, improved calculations for GaAs/AlGaAs heterojunctions, extension of the balance equations to an abitrary energy band and recent work on superlattice miniband transport.

scholarly journals A convergence study for the Laguerre expansion in the moment equation method for neoclassical transport in general toroidal plasmas

2010 ◽  
Vol 17 (8) ◽  
pp. 082510 ◽  
Author(s):  
S. Nishimura ◽  
H. Sugama ◽  
H. Maaßberg ◽  
C. D. Beidler ◽  
S. Murakami ◽  
...  
Keyword(s):  
Moment Equation ◽  
Equation Method ◽  
Laguerre Expansion ◽  
Toroidal Plasmas ◽  
Neoclassical Transport ◽  
Convergence Study ◽  
The Moment

Master Equation Approach to the Hopping Transport Theory

1979 ◽  
Vol 27 (9) ◽  
pp. 435-462 ◽  
Author(s):  
L. Bányai ◽  
A. Aldea
Keyword(s):  
Master Equation ◽  
Transport Theory ◽  
Equation Approach ◽  
Hopping Transport ◽  
Master Equation Approach

scholarly journals Erratum: “A convergence study for the Laguerre expansion in the moment equation method for neoclassical transport in general toroidal plasmas” [Phys. Plasmas 17, 082510 (2010)]

2011 ◽  
Vol 18 (6) ◽  
pp. 069901 ◽  
Author(s):  
S. Nishimura ◽  
H. Sugama ◽  
H. Maaßberg ◽  
C. D. Beidler ◽  
S. Murakami ◽  
...  
Keyword(s):  
Moment Equation ◽  
Equation Method ◽  
Laguerre Expansion ◽  
Toroidal Plasmas ◽  
Neoclassical Transport ◽  
Convergence Study ◽  
The Moment

scholarly journals NEOCLASSICAL TRANSPORT THEORY OF A MULTICOMPONENT PLASMA

1984 ◽  
Vol 33 (3) ◽  
pp. 309
Author(s):  
ZHOU HAI-LIN
Keyword(s):  
Transport Theory ◽  
Multicomponent Plasma ◽  
Neoclassical Transport

scholarly journals Extension of method of moment equation to nonlinear deterministic vibrations

2002 ◽  
Vol 24 (3) ◽  
pp. 133-141
Author(s):  
Nguyen Dong Anh ◽  
Ninh Quang Hai
Keyword(s):  
Nonlinear Vibration ◽  
Moment Equation ◽  
Numerical Results ◽  
Equation Approach ◽  
Method Of Moment ◽  
Vibration Problems

The paper present the so-called "an extended averaged equation approach" to the investigation of nonlinear vibration problems. The numerical results in analysing the vibration systems with weak, middle and strong non-linearity show the advantages of the method.

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