Abstract
We derive a quantum hydrodynamic model from a relaxation time approximation of the quantum Boltzmann equation by mean-free path asymptotics. The (formal) asymptotics are carried out in the case of a large electric field. They give a linear model for the position, current and energy densities of the electron gas.
Original language | English (US) |
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Pages (from-to) | 37-41 |
Number of pages | 5 |
Journal | Applied Mathematics Letters |
Volume | 7 |
Issue number | 5 |
DOIs | |
State | Published - Sep 1994 |
Externally published | Yes |
Keywords
- Moment hierarchy
- Quantum Boltzmann equation
- Small mean free path asymptotics
ASJC Scopus subject areas
- Applied Mathematics