The combined viscous semi-classical limit for a quantum hydrodynamic system with barrier potential

Dreher, Michael; Schnur, Johannes

The combined viscous semi-classical limit for a quantum hydrodynamic system with barrier potential

Files

Dreher_275021.pdf(534.04 KB)

Date

2014

Authors

Dreher, Michael

Schnur, Johannes

Series

Konstanzer Schriften in Mathematik; 329

Publication type

Working Paper/Technical Report

Abstract

We investigate the viscous model of quantum hydrodynamics, which describes the charge transport in a certain semiconductor. Quantum mechanical effects lead to third order derivatives, turning the stationary system into an elliptic system of mixed order in the sense of Douglis-Nirenberg. In the case most relevant to applications, the semiconductor device features a piecewise constant barrier potential. In the case of thermodynamic
equilibrium, we obtain asymptotic expansions of interfacial layers of the particle density in neighbourhoods of the jump points of this barrier potential, and we present rigorous proofs of uniform estimates of the remainder terms in these asymptotic expansions.

Subject (DDC)

510 Mathematics

Keywords

partial differential equations

Cite This

ISO 690

DREHER, Michael, Johannes SCHNUR, 2014. The combined viscous semi-classical limit for a quantum hydrodynamic system with barrier potential

BibTex

@techreport{Dreher2014combi-27502,
  year={2014},
  series={Konstanzer Schriften in Mathematik},
  title={The combined viscous semi-classical limit for a quantum hydrodynamic system with barrier potential},
  number={329},
  author={Dreher, Michael and Schnur, Johannes}
}

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