IFLP 13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Gamow states as solutions of a modified Lippmann-Schwinger equation
Autor/es:
OSVALDO CIVITARESE; M.GADELLA
Revista:
INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS
Editorial:
WORLD SCIENTIFIC PUBL CO PTE LTD
Referencias:
Lugar: London, UK; Año: 2016 vol. 25
ISSN:
0218-3013
Resumen:
In this paper, we discuss the structure of Gamow states as solutions of Lippmann?Schwinger equation. The Friedrichs model is used to demonstrate it, both analyticallyand by applying perturbation theory to the extended spectrum of the Hamiltonian. Themethod presented here may be relevant to the inclusion of resonances in discrete basis,without the need of numerical constructions to define Gamow states, as entities depend-ing on the choice of integrals contours, or as states resulting from ad hoc discretizationsof the continuum.
