We investigate the \(h\) expansion of the Time-Dependent Hartree Fock equation in the Wigner and Husimi representations. Both lead formally to the Vlasov equation in lowest order. The Husimi representation delivers a more stable expansion in particular when the selfinteraction in the mean field is c
The Vlasov equation for Coulomb systems and the Husimi picture
β Scribed by A. Domps; P. L'Eplattenier; P. G. Reinhard; E. Suraud
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 764 KB
- Volume
- 509
- Category
- Article
- ISSN
- 0003-3804
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β¦ Synopsis
We explore the validity of the Vlasov equation as a semi-classical approximation of time-dependent Hartree-Fock and time-dependent LDA theories. We discuss the fi --$ 0 limit for the propagation of quantal wavefunctions in terms of classical densities. The fi --f 0 limit is studied formally by means of its Wigner and Husimi phase-space representations. We consider an application to the valence electron cloud of metal clusters and show a comparison between quantal and Vlasov dynamics in this case.
π SIMILAR VOLUMES
We present a discussion of some numerical algorithms for the solution of the Vlasov-Maxwell system of equations in the magnetized, nonrelativistic case. We show that a splitting scheme combined with a Van Leer type of discretization provides an efficient and accurate scheme for integrating the motio