Semiclassical approach to fidelity amplitude

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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, I., Vallejos, R.O., Wisniacki, D.A.
Formato: JOUR
Materias:
External perturbations
Fidelity amplitude
Lyapunov decay
Quantum chaotic systems
Random dynamics
Random perturbations
Semiclassical approaches
Semiclassical theories
Chaotic systems
Acceso en línea: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 todo:paper_13672630_v13_n_p_GarciaMata
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spelling todo:paper_13672630_v13_n_p_GarciaMata2023-10-03T16:11:26Z Semiclassical approach to fidelity amplitude García-Mata, I. Vallejos, R.O. Wisniacki, D.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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, I.
Vallejos, R.O.
Wisniacki, D.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.
format JOUR
author García-Mata, I.
Vallejos, R.O.
Wisniacki, D.A.
author_facet García-Mata, I.
Vallejos, R.O.
Wisniacki, D.A.
author_sort García-Mata, I.
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
url http://hdl.handle.net/20.500.12110/paper_13672630_v13_n_p_GarciaMata
work_keys_str_mv AT garciamatai semiclassicalapproachtofidelityamplitude
AT vallejosro semiclassicalapproachtofidelityamplitude
AT wisniackida semiclassicalapproachtofidelityamplitude
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