التفاصيل البيبلوغرافية
| العنوان: |
A multi-term solution of the space-time Boltzmann equation for electrons in gaseous and liquid Argon |
| المؤلفون: |
Boyle, G. J., Cocks, D. G., Tattersall, W. J., McEachran, R. P., White, R. D. |
| سنة النشر: |
2015 |
| المجموعة: |
Physics (Other) |
| مصطلحات موضوعية: |
Physics - Computational Physics |
| الوصف: |
In a recent paper [1] the scattering and transport of excess electrons in liquid argon in the hydrodynamic regime was investigated, generalizing the seminal works of Lekner and Cohen [2,3] with modern scattering theory techniques and kinetic theory. In this paper, the discussion is extended to the non-hydrodynamic regime through the development of a full multi-term space-time solution of Boltzmann's equation for electron transport in gases and liquids using a novel operator-splitting method. A Green's function formalism is considered that enables flexible adaptation to various experimental systems. The spatio-temporal evolution of electrons in liquids in the hydrodynamic regime is studied for a benchmark model Percus-Yevick liquid as well as for liquid argon. The temporal evolution of Franck-Hertz oscillations are observed for liquids, with striking differences in the spatio-temporal development of the velocity distribution function components between the uncorrelated gas and true liquid approximations in argon. Transport properties calculated from the non-hydrodynamic theory in the long time limit, and under steady-state Townsend conditions, are benchmarked against hydrodynamic transport coefficients. |
| نوع الوثيقة: |
Working Paper |
| DOI: |
10.1088/1361-6595/aa51ef |
| URL الوصول: |
http://arxiv.org/abs/1509.00867 |
| رقم الانضمام: |
edsarx.1509.00867 |
| قاعدة البيانات: |
arXiv |