Photon-assisted Fano resonance and corresponding shot noise in a quantum dot

2003/04/02 by Zhongshui Ma, Yu Zhu, Xin-Qi Li +2 · 3 citations
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.69.045302

4 pages, 5 figures

arxiv created 2003/04/02 · openalex publication_date 2004/01/06 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We have studied the Fano resonance in photon-assisted transport through a quantum dot. Both the coherent current and the spectral density of shot noise have been calculated. It is predicted that the shape of the Fano profile will also appear in satellite peaks. It is found that the variations of Fano profiles with the strengths of nonresonant transmissions are not synchronous in absorption and emission sidebands. The effect of interference on photon-assisted pumped current has also been investigated. We further predict the current and spectral density of shot noise as a periodic function of the phase, which exhibits an intrinsic property of resonant and nonresonant channels in the structures.

Citations

• Time-dependent transport in interacting and non-interacting mesoscopic systems
• Noise in an ac biased junction: Nonstationary Aharonov-Bohm effect
• Temperature dependence of Fano line shapes in a weakly coupled single-electron transistor
• Effects of Configuration Interaction on Intensities and Phase Shifts

Cited by

• Influence of microwave fields on electron transport through a quantum dot in the presence of direct tunneling between leads
• Photon-assisted electron transport through a three-terminal quantum dot system with nonresonant tunneling channels
• Quantum transport theory for nanostructures with Rashba spin-orbital interaction