Ghost Fano resonance in a double quantum dot molecule attached to leads

By M. L. L. D. Guevara, F. Claro, P. Orellana. 2003

273 citations recorded by the source corpus.

We study the electronic transport through a double-quantum dot molecule attached to leads and examine the transition from a configuration in series to a symmetrical parallel geometry. We find that a progressive reduction of the tunneling through the antibonding state takes place as a result of the destructive quantum interference between different pathways through the molecule. The Fano resonance narrows down. disappearing entirely when the configuration is totally symmetric, so that only the bonding state participates in the transmission. In this limit, the antibonding state becomes completely localized.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/f4f32a160baab6354c6c54e7bdc9be9255a53758

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In Atomic and Molecular Physics, and Optics

In Electrical and Electronic Engineering

Citations in the corpus

Bound states in the continuum in open acoustic resonators (2015, background): “Importantly, the full destructive interference of two degenerate eigenmodes leaking into waveguides represents a generic mechanism of BSC formation (Friedrich & Wintgen 1985) whose implementation goes far beyond the above symmetry arguments by Ladrón de Guevara et al. (2003).”
Bound states in the continuum (2016, background): “…create an odd-in-y defect bound state; such configuration has been explored with the attached defects being single-mode optical waveguides 25–28 , mechanically coupled beads 29,30 , quantum dots 31–41 , graphene flakes 42,43 , ring structures 37,44,45 , or impurity atoms 46,47 ; among these, refs.”