Theory of 2 δ-kicked quantum rotors

We examine the quantum dynamics of cold atoms subjected to pairs of closely spaced kicks from standing waves of light and find behavior quite unlike the well-studied quantum kicked rotor QKR. We show that the quantum phase space has a periodic, cellular structure arising from a unitary matrix with o...

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Detalles Bibliográficos
Autores: Creffield, Charles, Fishman, S., Monteiro, T. S.
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/51582
Acceso en línea:https://hdl.handle.net/20.500.14352/51582
Access Level:acceso abierto
Palabra clave:538.9
Delta-kicked rotor
Spectral statistics
Disordered-systems
Chaotic systems
Eigenfunctions
Transition
Dynamics
Barriers
Cantori
Models
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
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spelling Theory of 2 δ-kicked quantum rotorsCreffield, CharlesFishman, S.Monteiro, T. S.538.9Delta-kicked rotorSpectral statisticsDisordered-systemsChaotic systemsEigenfunctionsTransitionDynamicsBarriersCantoriModelsFísica de materialesFísica del estado sólido2211 Física del Estado SólidoWe examine the quantum dynamics of cold atoms subjected to pairs of closely spaced kicks from standing waves of light and find behavior quite unlike the well-studied quantum kicked rotor QKR. We show that the quantum phase space has a periodic, cellular structure arising from a unitary matrix with oscillating bandwidth. The corresponding eigenstates are exponentially localized, but scale with a fractional power L~ħ_(-0.75), in contrast to the QKR for which L~ħ_(-1). The effect of intercell (and intracell) transport is investigated by studying the spectral fluctuations with both periodic as well as “open” boundary conditions.American Physical SocietyUniversidad Complutense de Madrid20062006-06-0120062006-06-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/51582reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/515822026-06-02T12:44:21Z
dc.title.none.fl_str_mv Theory of 2 δ-kicked quantum rotors
title Theory of 2 δ-kicked quantum rotors
spellingShingle Theory of 2 δ-kicked quantum rotors
Creffield, Charles
538.9
Delta-kicked rotor
Spectral statistics
Disordered-systems
Chaotic systems
Eigenfunctions
Transition
Dynamics
Barriers
Cantori
Models
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
title_short Theory of 2 δ-kicked quantum rotors
title_full Theory of 2 δ-kicked quantum rotors
title_fullStr Theory of 2 δ-kicked quantum rotors
title_full_unstemmed Theory of 2 δ-kicked quantum rotors
title_sort Theory of 2 δ-kicked quantum rotors
dc.creator.none.fl_str_mv Creffield, Charles
Fishman, S.
Monteiro, T. S.
author Creffield, Charles
author_facet Creffield, Charles
Fishman, S.
Monteiro, T. S.
author_role author
author2 Fishman, S.
Monteiro, T. S.
author2_role author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 538.9
Delta-kicked rotor
Spectral statistics
Disordered-systems
Chaotic systems
Eigenfunctions
Transition
Dynamics
Barriers
Cantori
Models
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
topic 538.9
Delta-kicked rotor
Spectral statistics
Disordered-systems
Chaotic systems
Eigenfunctions
Transition
Dynamics
Barriers
Cantori
Models
Física de materiales
Física del estado sólido
2211 Física del Estado Sólido
description We examine the quantum dynamics of cold atoms subjected to pairs of closely spaced kicks from standing waves of light and find behavior quite unlike the well-studied quantum kicked rotor QKR. We show that the quantum phase space has a periodic, cellular structure arising from a unitary matrix with oscillating bandwidth. The corresponding eigenstates are exponentially localized, but scale with a fractional power L~ħ_(-0.75), in contrast to the QKR for which L~ħ_(-1). The effect of intercell (and intracell) transport is investigated by studying the spectral fluctuations with both periodic as well as “open” boundary conditions.
publishDate 2006
dc.date.none.fl_str_mv 2006
2006-06-01
2006
2006-06-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/51582
url https://hdl.handle.net/20.500.14352/51582
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869418735450718208
score 15.301603

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