Transport Via Moments of Quantum Distribution Functions

Abstract

This study represents the first comprehensive effort to assess through (1) numerical simulations of the equation of motion of the density matrix, and (2) approximate analytical procedures involving an expansion of the liouville potential, the multiplicative constant associated with the quantum potential as used in quantum hydrodynamic transport. It was found that when quantum effects are 'corrections' to classical calculations, as in N(+)N(-)N(+) structures the factor 1/3' is a satisfactory multiplicative constant. When the quantum potential is no longer 'constant' but is position dependent and less than unity.

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Document Details

Document Type
Technical Report
Publication Date
Dec 10, 1990
Accession Number
ADA231182

Entities

People

  • H. L. Grubin
  • T. R. Govindan

Tags

DTIC Thesaurus Topics

  • Bipolar Junction Transistors
  • Boltzmann Equation
  • Charge Density
  • Distribution Functions
  • Electrical Properties
  • Energy
  • Equations
  • High Temperature
  • Potential Energy
  • Quantum Mechanics
  • Quantum Wells
  • Scientific Research
  • Simulations
  • Three Dimensional
  • Transport Ships
  • Two Dimensional
  • Wave Functions

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Quantum Computing