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On the relations between the polarization propagator, the principal propagator, and the particle-hole propagator

✍ Scribed by Jens Oddershede

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
384 KB
Volume
22
Category
Article
ISSN
0020-7608

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πŸ“œ SIMILAR VOLUMES

Self-consistent approximation to the pol
Self-consistent approximation to the polarization propagator
✍ Brian Weiner; Osvaldo Goscinski πŸ“‚ Article πŸ“… 1980 πŸ› John Wiley and Sons 🌐 English βš– 732 KB

## Abstract A theorem is presented that characterizes approximate states and truncated operator manifolds associated with self‐consistent approximate propagators. This theorem establishes a natural relationship between Hermiticity, stationarity, nonredundance and completeness of operator manifolds,

ON THE RELATION BETWEEN COMPLEX MODES AN
ON THE RELATION BETWEEN COMPLEX MODES AND WAVE PROPAGATION PHENOMENA
✍ K.M. AHMIDA; J.R.F. ARRUDA πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 632 KB

This paper discusses the well-known, but often misunderstood, concept of complex modes of dynamic structures. It shows how complex modes can be interpreted in terms of wave propagation phenomena caused by either localized damping or propagation to the surrounding media. Numerical simulation results