Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-10-20
Physics
Condensed Matter
Strongly Correlated Electrons
Scientific paper
Electron dynamics in metallic clusters are examined using a time-dependent density functional theory that in-cludes a "memory term", i.e. attempts to describe temporal non-local correlations. Using the Iwamoto, Gross and Kohn exchange-correlation (XC) kernel we construct a translationally invariant memory action from which an XC potential is derived that is translationally covariant and exerts zero net force on the electrons. An efficient and stable numerical method to solve the resulting Kohn-Sham equations is presented. Using this framework, we study memory effects on electron dynamics in spherical Jellium "gold clusters". We find memory significantly broadens the surface plasmon absorption line, yet considerably less than measured in real gold clusters, attributed to the inadequacy of the Jellium model. Two-dimensional pump-probe spectroscopy is used to study the temporal decay profile of the plasmon, finding a fast decay followed by slower tail. Finally, we examine memory effects on high harmonic generation, finding memory narrows emission lines.
Baer Roi
Kurzweil Yair
No associations
LandOfFree
Quantum memory effects on the dynamics of electrons in gold clusters 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 Quantum memory effects on the dynamics of electrons in gold clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum memory effects on the dynamics of electrons in gold clusters will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-476115