Phase effects on the conductance through parallel double dots

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Phase effects on the conductance of a double-dot system in a ring structure threaded by a magnetic flux are studied. The Aharonov-Bohm effect combined with the dot many-body charging effects determine the phases of the currents going through each arm of the ring. The cases for zero magnetic flux or...

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Autores principales: Apel, V.M., Davidovich, M.A., Chiappe, G., Anda, E.V.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10980121_v72_n12_p_Apel
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_10980121_v72_n12_p_Apel
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spelling todo:paper_10980121_v72_n12_p_Apel2023-10-03T16:05:55Z Phase effects on the conductance through parallel double dots Apel, V.M. Davidovich, M.A. Chiappe, G. Anda, E.V. Phase effects on the conductance of a double-dot system in a ring structure threaded by a magnetic flux are studied. The Aharonov-Bohm effect combined with the dot many-body charging effects determine the phases of the currents going through each arm of the ring. The cases for zero magnetic flux or half a quantum of flux are discussed in detail. It is shown that, depending upon the magnetic flux and the state of charge of the dots, controlled by gate potentials, the dephasing of the upper and lower arm current gives rise to a S=1 2 or S=1 Kondo regime. © 2005 The American Physical Society. Fil:Apel, V.M. 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_10980121_v72_n12_p_Apel
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Phase effects on the conductance of a double-dot system in a ring structure threaded by a magnetic flux are studied. The Aharonov-Bohm effect combined with the dot many-body charging effects determine the phases of the currents going through each arm of the ring. The cases for zero magnetic flux or half a quantum of flux are discussed in detail. It is shown that, depending upon the magnetic flux and the state of charge of the dots, controlled by gate potentials, the dephasing of the upper and lower arm current gives rise to a S=1 2 or S=1 Kondo regime. © 2005 The American Physical Society.
format JOUR
author Apel, V.M.
Davidovich, M.A.
Chiappe, G.
Anda, E.V.
spellingShingle Apel, V.M.
Davidovich, M.A.
Chiappe, G.
Anda, E.V.
Phase effects on the conductance through parallel double dots
author_facet Apel, V.M.
Davidovich, M.A.
Chiappe, G.
Anda, E.V.
author_sort Apel, V.M.
title Phase effects on the conductance through parallel double dots
title_short Phase effects on the conductance through parallel double dots
title_full Phase effects on the conductance through parallel double dots
title_fullStr Phase effects on the conductance through parallel double dots
title_full_unstemmed Phase effects on the conductance through parallel double dots
title_sort phase effects on the conductance through parallel double dots
url http://hdl.handle.net/20.500.12110/paper_10980121_v72_n12_p_Apel
work_keys_str_mv AT apelvm phaseeffectsontheconductancethroughparalleldoubledots
AT davidovichma phaseeffectsontheconductancethroughparalleldoubledots
AT chiappeg phaseeffectsontheconductancethroughparalleldoubledots
AT andaev phaseeffectsontheconductancethroughparalleldoubledots
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