Persistent currents in a mesoscopic ring with a side connected quantum dot

We study the persistent current circulating along a mesoscopic ring with a dot side-coupled to it when threaded by a magnetic field. A cluster including the dot and its vicinity is diagonalized and embedded into the rest of the system. The result is numerically exact. We show that in the Kondo regim...

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Autores principales: Anda, E.V., Busser, C., Chiappe, G., Davidovich, M.A.
Formato: JOUR
Materias:
Kondo effect
Persistent currents
Quantum dots
Strong correlated systems
Algorithms
Electrons
Ground state
Hamiltonians
Magnetic field effects
Magnetic flux
Transport properties
Semiconductor quantum dots
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09214526_v320_n1-4_p358_Anda
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09214526_v320_n1-4_p358_Anda
record_format dspace
spelling todo:paper_09214526_v320_n1-4_p358_Anda2023-10-03T15:45:08Z Persistent currents in a mesoscopic ring with a side connected quantum dot Anda, E.V. Busser, C. Chiappe, G. Davidovich, M.A. Kondo effect Persistent currents Quantum dots Strong correlated systems Algorithms Electrons Ground state Hamiltonians Magnetic field effects Magnetic flux Transport properties Persistent currents Semiconductor quantum dots We study the persistent current circulating along a mesoscopic ring with a dot side-coupled to it when threaded by a magnetic field. A cluster including the dot and its vicinity is diagonalized and embedded into the rest of the system. The result is numerically exact. We show that in the Kondo regime, the current can be a smooth or a strongly dependent function of the gate potential according to the structure of occupation of the highest energetic electrons of the system. © 2002 Elsevier Science B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09214526_v320_n1-4_p358_Anda
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Kondo effect
Persistent currents
Quantum dots
Strong correlated systems
Algorithms
Electrons
Ground state
Hamiltonians
Magnetic field effects
Magnetic flux
Transport properties
Persistent currents
Semiconductor quantum dots
spellingShingle Kondo effect
Persistent currents
Quantum dots
Strong correlated systems
Algorithms
Electrons
Ground state
Hamiltonians
Magnetic field effects
Magnetic flux
Transport properties
Persistent currents
Semiconductor quantum dots
Anda, E.V.
Busser, C.
Chiappe, G.
Davidovich, M.A.
Persistent currents in a mesoscopic ring with a side connected quantum dot
topic_facet Kondo effect
Persistent currents
Quantum dots
Strong correlated systems
Algorithms
Electrons
Ground state
Hamiltonians
Magnetic field effects
Magnetic flux
Transport properties
Persistent currents
Semiconductor quantum dots
description We study the persistent current circulating along a mesoscopic ring with a dot side-coupled to it when threaded by a magnetic field. A cluster including the dot and its vicinity is diagonalized and embedded into the rest of the system. The result is numerically exact. We show that in the Kondo regime, the current can be a smooth or a strongly dependent function of the gate potential according to the structure of occupation of the highest energetic electrons of the system. © 2002 Elsevier Science B.V. All rights reserved.
format JOUR
author Anda, E.V.
Busser, C.
Chiappe, G.
Davidovich, M.A.
author_facet Anda, E.V.
Busser, C.
Chiappe, G.
Davidovich, M.A.
author_sort Anda, E.V.
title Persistent currents in a mesoscopic ring with a side connected quantum dot
title_short Persistent currents in a mesoscopic ring with a side connected quantum dot
title_full Persistent currents in a mesoscopic ring with a side connected quantum dot
title_fullStr Persistent currents in a mesoscopic ring with a side connected quantum dot
title_full_unstemmed Persistent currents in a mesoscopic ring with a side connected quantum dot
title_sort persistent currents in a mesoscopic ring with a side connected quantum dot
url http://hdl.handle.net/20.500.12110/paper_09214526_v320_n1-4_p358_Anda
work_keys_str_mv AT andaev persistentcurrentsinamesoscopicringwithasideconnectedquantumdot
AT busserc persistentcurrentsinamesoscopicringwithasideconnectedquantumdot
AT chiappeg persistentcurrentsinamesoscopicringwithasideconnectedquantumdot
AT davidovichma persistentcurrentsinamesoscopicringwithasideconnectedquantumdot
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