ac field-induced Fano resonances in a parallel-coupled double quantum dot system

Hui Pan; Su Qing Duan; Wei Dong Chu; Wei Zhang

doi:10.1016/j.physleta.2008.01.034

ac field-induced Fano resonances in a parallel-coupled double quantum dot system

Hui Pan^*
, Su Qing Duan
, Wei Dong Chu
, Wei Zhang

^*Corresponding author for this work

School of Physics

IAPCM

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The effects of an ac electric field on the Fano resonance in a parallel-coupled double quantum dot system are investigated theoretically. The field can induce the photon-assisted Fano resonances for both symmetrical and asymmetrical parallel configurations. The magnitude and position of the photon-assisted Fano peak can be tuned by the ac field strength and frequency, respectively. Furthermore, the Fano resonance can appear with increasing the field frequency for both the symmetrical and asymmetrical configurations. This provides an efficient mechanism to control the Fano resonance. The photon-electron pumping effects for the symmetrical and asymmetrical cases are also studied in the weak- and strong-coupling regime.

Original language	English
Pages (from-to)	3292-3298
Number of pages	7
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	372
Issue number	18
DOIs	https://doi.org/10.1016/j.physleta.2008.01.034
State	Published - 28 Apr 2008

Keywords

Parallel-coupled double quantum dots
Photon-assisted tunneling
ac field-induced Fano resonances

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10.1016/j.physleta.2008.01.034

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title = "ac field-induced Fano resonances in a parallel-coupled double quantum dot system",

abstract = "The effects of an ac electric field on the Fano resonance in a parallel-coupled double quantum dot system are investigated theoretically. The field can induce the photon-assisted Fano resonances for both symmetrical and asymmetrical parallel configurations. The magnitude and position of the photon-assisted Fano peak can be tuned by the ac field strength and frequency, respectively. Furthermore, the Fano resonance can appear with increasing the field frequency for both the symmetrical and asymmetrical configurations. This provides an efficient mechanism to control the Fano resonance. The photon-electron pumping effects for the symmetrical and asymmetrical cases are also studied in the weak- and strong-coupling regime.",

keywords = "Parallel-coupled double quantum dots, Photon-assisted tunneling, ac field-induced Fano resonances",

author = "Hui Pan and Duan, \{Su Qing\} and Chu, \{Wei Dong\} and Wei Zhang",

year = "2008",

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day = "28",

doi = "10.1016/j.physleta.2008.01.034",

language = "英语",

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T1 - ac field-induced Fano resonances in a parallel-coupled double quantum dot system

AU - Pan, Hui

AU - Duan, Su Qing

AU - Chu, Wei Dong

AU - Zhang, Wei

PY - 2008/4/28

Y1 - 2008/4/28

N2 - The effects of an ac electric field on the Fano resonance in a parallel-coupled double quantum dot system are investigated theoretically. The field can induce the photon-assisted Fano resonances for both symmetrical and asymmetrical parallel configurations. The magnitude and position of the photon-assisted Fano peak can be tuned by the ac field strength and frequency, respectively. Furthermore, the Fano resonance can appear with increasing the field frequency for both the symmetrical and asymmetrical configurations. This provides an efficient mechanism to control the Fano resonance. The photon-electron pumping effects for the symmetrical and asymmetrical cases are also studied in the weak- and strong-coupling regime.

AB - The effects of an ac electric field on the Fano resonance in a parallel-coupled double quantum dot system are investigated theoretically. The field can induce the photon-assisted Fano resonances for both symmetrical and asymmetrical parallel configurations. The magnitude and position of the photon-assisted Fano peak can be tuned by the ac field strength and frequency, respectively. Furthermore, the Fano resonance can appear with increasing the field frequency for both the symmetrical and asymmetrical configurations. This provides an efficient mechanism to control the Fano resonance. The photon-electron pumping effects for the symmetrical and asymmetrical cases are also studied in the weak- and strong-coupling regime.

KW - Parallel-coupled double quantum dots

KW - Photon-assisted tunneling

KW - ac field-induced Fano resonances

UR - https://www.scopus.com/pages/publications/41649084141

U2 - 10.1016/j.physleta.2008.01.034

DO - 10.1016/j.physleta.2008.01.034

M3 - 文章

AN - SCOPUS:41649084141

SN - 0375-9601

VL - 372

SP - 3292

EP - 3298

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 18

ER -

ac field-induced Fano resonances in a parallel-coupled double quantum dot system

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Keywords

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