Semiclassical approach to fidelity amplitude

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 limit-attained approximately by stro...

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Autores principales:	García-Mata, Ignacio, Vallejos, Raúl Oscar, Wisniacki, Diego A.
Publicado:	2011
Materias:	External perturbations Fidelity amplitude Lyapunov decay Quantum chaotic systems Random dynamics Random perturbations Semiclassical approaches Semiclassical theories Chaotic systems
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13672630_v13_n_p_GarciaMata http://hdl.handle.net/20.500.12110/paper_13672630_v13_n_p_GarciaMata
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_13672630_v13_n_p_GarciaMata
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spelling	paper:paper_13672630_v13_n_p_GarciaMata2023-06-08T16:12:05Z Semiclassical approach to fidelity amplitude García-Mata, Ignacio Vallejos, Raúl Oscar Wisniacki, Diego A. External perturbations Fidelity amplitude Lyapunov decay Quantum chaotic systems Random dynamics Random perturbations Semiclassical approaches Semiclassical theories Chaotic systems 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 limit-attained approximately by strongly chaotic systems-and the random perturbation limit, which shows a Lyapunov decay. Numerical simulations help us to bridge the gap between both the extreme cases. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Fil:García-Mata, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Vallejos, R.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Wisniacki, D.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13672630_v13_n_p_GarciaMata http://hdl.handle.net/20.500.12110/paper_13672630_v13_n_p_GarciaMata
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	External perturbations Fidelity amplitude Lyapunov decay Quantum chaotic systems Random dynamics Random perturbations Semiclassical approaches Semiclassical theories Chaotic systems
spellingShingle	External perturbations Fidelity amplitude Lyapunov decay Quantum chaotic systems Random dynamics Random perturbations Semiclassical approaches Semiclassical theories Chaotic systems García-Mata, Ignacio Vallejos, Raúl Oscar Wisniacki, Diego A. Semiclassical approach to fidelity amplitude
topic_facet	External perturbations Fidelity amplitude Lyapunov decay Quantum chaotic systems Random dynamics Random perturbations Semiclassical approaches Semiclassical theories Chaotic systems
description	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 limit-attained approximately by strongly chaotic systems-and the random perturbation limit, which shows a Lyapunov decay. Numerical simulations help us to bridge the gap between both the extreme cases. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
author	García-Mata, Ignacio Vallejos, Raúl Oscar Wisniacki, Diego A.
author_facet	García-Mata, Ignacio Vallejos, Raúl Oscar Wisniacki, Diego A.
author_sort	García-Mata, Ignacio
title	Semiclassical approach to fidelity amplitude
title_short	Semiclassical approach to fidelity amplitude
title_full	Semiclassical approach to fidelity amplitude
title_fullStr	Semiclassical approach to fidelity amplitude
title_full_unstemmed	Semiclassical approach to fidelity amplitude
title_sort	semiclassical approach to fidelity amplitude
publishDate	2011
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13672630_v13_n_p_GarciaMata http://hdl.handle.net/20.500.12110/paper_13672630_v13_n_p_GarciaMata
work_keys_str_mv	AT garciamataignacio semiclassicalapproachtofidelityamplitude AT vallejosrauloscar semiclassicalapproachtofidelityamplitude AT wisniackidiegoa semiclassicalapproachtofidelityamplitude
_version_	1768546600511078400

Semiclassical approach to fidelity amplitude

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