Quantum interference effects in multi-channel correlated tunneling structures

Abstract In multi-channel tunneling systems quantum interference effects modify tunneling conductance spectra due to Fano effect. We investigated the impact of Hubbard type Coulomb interaction on tunneling conductance spectra for the system formed by several interacting impurity atoms or quantum dot...

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Autores principales:	N. S. Maslova, V. N. Mantsevich, V. N. Luchkin, V. V. Palyulin, P. I. Arseyev, I. M. Sokolov
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d9bd05027d6d49e1b52ea380b2bf9ae1
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spelling	oai:doaj.org-article:d9bd05027d6d49e1b52ea380b2bf9ae12021-12-02T17:51:16ZQuantum interference effects in multi-channel correlated tunneling structures10.1038/s41598-021-97199-22045-2322https://doaj.org/article/d9bd05027d6d49e1b52ea380b2bf9ae12021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-97199-2https://doaj.org/toc/2045-2322Abstract In multi-channel tunneling systems quantum interference effects modify tunneling conductance spectra due to Fano effect. We investigated the impact of Hubbard type Coulomb interaction on tunneling conductance spectra for the system formed by several interacting impurity atoms or quantum dots localised between the contact leads. It was shown that the Fano shape of tunneling conductance spectra strongly changes in the presence of on-site Coulomb interaction between localised electrons in the intermediate system. The main effect which determines the shape of the tunneling peaks could be not Fano interference but mostly nonequilibrium dependence of the occupation numbers on bias voltage.N. S. MaslovaV. N. MantsevichV. N. LuchkinV. V. PalyulinP. I. ArseyevI. M. SokolovNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q N. S. Maslova V. N. Mantsevich V. N. Luchkin V. V. Palyulin P. I. Arseyev I. M. Sokolov Quantum interference effects in multi-channel correlated tunneling structures
description	Abstract In multi-channel tunneling systems quantum interference effects modify tunneling conductance spectra due to Fano effect. We investigated the impact of Hubbard type Coulomb interaction on tunneling conductance spectra for the system formed by several interacting impurity atoms or quantum dots localised between the contact leads. It was shown that the Fano shape of tunneling conductance spectra strongly changes in the presence of on-site Coulomb interaction between localised electrons in the intermediate system. The main effect which determines the shape of the tunneling peaks could be not Fano interference but mostly nonequilibrium dependence of the occupation numbers on bias voltage.
format	article
author	N. S. Maslova V. N. Mantsevich V. N. Luchkin V. V. Palyulin P. I. Arseyev I. M. Sokolov
author_facet	N. S. Maslova V. N. Mantsevich V. N. Luchkin V. V. Palyulin P. I. Arseyev I. M. Sokolov
author_sort	N. S. Maslova
title	Quantum interference effects in multi-channel correlated tunneling structures
title_short	Quantum interference effects in multi-channel correlated tunneling structures
title_full	Quantum interference effects in multi-channel correlated tunneling structures
title_fullStr	Quantum interference effects in multi-channel correlated tunneling structures
title_full_unstemmed	Quantum interference effects in multi-channel correlated tunneling structures
title_sort	quantum interference effects in multi-channel correlated tunneling structures
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d9bd05027d6d49e1b52ea380b2bf9ae1
work_keys_str_mv	AT nsmaslova quantuminterferenceeffectsinmultichannelcorrelatedtunnelingstructures AT vnmantsevich quantuminterferenceeffectsinmultichannelcorrelatedtunnelingstructures AT vnluchkin quantuminterferenceeffectsinmultichannelcorrelatedtunnelingstructures AT vvpalyulin quantuminterferenceeffectsinmultichannelcorrelatedtunnelingstructures AT piarseyev quantuminterferenceeffectsinmultichannelcorrelatedtunnelingstructures AT imsokolov quantuminterferenceeffectsinmultichannelcorrelatedtunnelingstructures
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Quantum interference effects in multi-channel correlated tunneling structures

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