par Antoniou, Ioannis 
;Gadella, Manuel;Melnikov, Yu;Pronko, G.P.
Référence Chaos, solitons and fractals, 12, 14-15, page (2707-2717)
Publication Publié, 2001-11
;Gadella, Manuel;Melnikov, Yu;Pronko, G.P.Référence Chaos, solitons and fractals, 12, 14-15, page (2707-2717)
Publication Publié, 2001-11
Article révisé par les pairs
| Résumé : | Gamow vectors provide a state vector or wave function to a quantum exponentially decaying state. The decaying states appear in quantum scattering when the S-matrix in the energy representation or the projection of the resolvent of the interaction Hamiltonian into a suitable subspace have simple poles in the complex plane. Three selected physical examples of Gamow vectors were presented to illustrate their physical significance. The central potential scattering, one-dimensional lattice with impurities in an electric Stark field, and a simple model for unstable Friedrichs particles were described. |
