Abstract
We have obtained exact analytical expressions in closed form, for the linear modes excited in finite and discrete systems that are driven by a spatially homogeneous alternating field. Those modes are extended for frequencies within the linear frequency band while they are either end-localized or end-avoided for frequencies outside the linear frequency band. The analytical solutions are resonant at particular frequencies, which compose the frequency dispersion relation of the finite system.
| Original language | British English |
|---|---|
| Pages (from-to) | 2179-2182 |
| Number of pages | 4 |
| Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
| Volume | 374 |
| Issue number | 21 |
| DOIs | |
| State | Published - 26 Apr 2010 |
Keywords
- Linear driven modes
- Linear lattices
- Tridiagonal matrix inversion