Wigner function quantum molecular dynamics

Details Wigner function quantum molecular dynamics Wigner function quantum molecular dynamics

2006-11-21

arxiv.org/abs/cond-mat/0611560v1

Lecture Notes in Physics 739 (2007) pp. 41-62

Physics

Condensed Matter

Strongly Correlated Electrons

18 pages, based on lecture at Hareaus school on computational phyics, Greifswald, September 2006

Scientific paper

Classical molecular dynamics (MD) is a well established and powerful tool in various fields of science, e.g. chemistry, plasma physics, cluster physics and condensed matter physics. Objects of investigation are few-body systems and many-body systems as well. The broadness and level of sophistication of this technique is documented in many monographs and reviews, see for example \cite{Allan,Frenkel,mdhere}. Here we discuss the extension of MD to quantum systems (QMD). There have been many attempts in this direction which differ from one another, depending on the type of system under consideration. One direction of QMD has been developed for condensed matter systems and will not discussed here, e.g. \cite{fermid}. In this chapter we are dealing with unbound electrons as they occur in gases, fluids or plasmas. Here, one strategy is to replace classical point particles by wave packets, e.g. \cite{fermid,KTR94,zwicknagel06} which is quite successful. At the same time, this method struggles with problems related to the dispersion of such a packet and difficulties to properly describe strong electron-ion interaction and bound state formation. We, therefore, avoid such restrictions and consider a completely general alternative approach. We start discussion of quantum dynamics from a general consideration of quantum distribution functions.

Affiliated with

Also associated with

No associations

Rating

Wigner function quantum molecular dynamics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Wigner function quantum molecular dynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wigner function quantum molecular dynamics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-338452