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Causality and the effective range expansion

✍ Scribed by H.-W. Hammer; Dean Lee


Book ID
108053332
Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
493 KB
Volume
325
Category
Article
ISSN
0003-4916

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πŸ“œ SIMILAR VOLUMES


Effective range expansion revisited
✍ Sadhan K. Adhikari; JosΓ©R.A. TorreΓ£o πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 English βš– 279 KB
Orthogonal expansions and the causality
✍ Henning F. Harmuth πŸ“‚ Article πŸ“… 1985 πŸ› Elsevier Science 🌐 English βš– 771 KB

The use of orthogonal expansions leads sometimes to results that clearly do not satisfy the causality law. The best known.example is the filtering of a step function by a lowpass filter with idealized frequency cut-off. The Fourier transform yields in this case an output function starting at the tim