INVESTIGADORES
GARCIA MATA ignacio
artículos
Título:
Semiclassical approach to fidelity amplitude
Autor/es:
IGNACIO GARCÍA-MATA; RAUL O. VALLEJOS; DIEGO A. WISNIACKI
Revista:
NEW JOURNAL OF PHYSICS
Editorial:
IOP PUBLISHING LTD
Referencias:
Año: 2011 vol. 13 p. 103040 - 103058
ISSN:
1367-2630
Resumen:
The fidelity amplitude (FA) is a quantity of paramount importance in echo-type experiments. We use semiclassical theory to study the average FA for quantum chaotic systems under external perturbation. We explain analytically two extreme cases: the random dynamics limitattained approximately by strongly chaotic systemsand the random perturbation limit, which shows a Lyapunov decay. Numerical simulations help us to bridge the gap between both the extreme cases.
