Fano resonance in a two-level quantum dot side-coupled to leads

Abstract

We theoretically study Fano resonance in a two-level quantum dot side-coupled to two leads, which are connected by a direct channel. The resonance lineshape is found to be deformed, from the conventional Fano form, by interlevel Coulomb interaction and interlevel interference. We derive the connection between the lineshape deformation and the interaction-induced nonmonotonicity of level occupation, which may be useful for experimental study. The dependence of the lineshape on the transmission of the direct channel and on the dot-lead coupling matrix elements is discussed.

4 pages, 4 figures

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Cited by in corpus (5)

• Enhancement of the thermoelectric effect due to the Majorana zero modes coupled to one quantum-dot system
• Charge and spin transport through normal lead coupled to $s$-wave superconductor and a Majorana zero mode
• Spin-Polarized STM for a Kondo adatom
• Tunable Fano-Kondo resonance in side-coupled double quantum dot system
• Coherent switching by detuning a side-coupled quantum-dot system