Quantum Multiple Scattering: Eigenmode Expansion and Its Applications to Proximity Resonance
| dc.creator | Li, Sheng | |
| dc.creator | Heller, Eric J. | |
| dc.date | 2001-12-15 | |
| dc.date | 2002-10-21 | |
| dc.date.accessioned | 2026-07-07T05:46:51Z | |
| dc.date.available | 2026-07-07T05:46:51Z | |
| dc.description | We show that for a general system of N s-wave point scatterers, there are always N eigenmodes. These eigenmodes or eigenchannels play the same role as spherical harmonics for a spherically symmetric target--they give a phase shift only. In other words, the T matrix of the system is of rank N and the eigenmodes are eigenvectors corresponding to non-0 eigenvalues of the T matrix. The eigenmode expansion approach can give insight to the total scattering cross section; the position, width, and superradiant or subradiant nature of resonance peaks; the unsymmetric Fano lineshape of sharp proximity resonance peaks based on the high energy tail of a broad band; and other properties. Off-resonant eigenmodes for identical proximate scatterers are approximately angular momentum eigenstates. | |
| dc.description | Accepted by PRA. Research is underway currently to apply this method to superradiance | |
| dc.identifier | https://arxiv.org/abs/physics/0112044 | |
| dc.identifier | http://arxiv.org/abs/physics/0112044 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/84490 | |
| dc.subject | Atomic Physics | |
| dc.subject | Quantum Physics | |
| dc.title | Quantum Multiple Scattering: Eigenmode Expansion and Its Applications to Proximity Resonance | |
| dc.type | text |