Extraordinary resonant transmission in two-terminal fermionic transport

TL;DR

This paper investigates how decoherence affects resonant transmission in a two-terminal fermionic ladder, revealing robustness of Fano resonances and prevention of bound state collapse due to decoherence.

Contribution

It demonstrates that Fano resonances are resilient to decoherence and that decoherence prevents the collapse of bound states in the continuum in fermionic transport.

Findings

Fano resonances remain robust despite decoherence

Decoherence prevents collapse of bound states in the continuum

Resonant transmission features are significantly influenced by decoherence

Abstract

We analyze conductance of a two-leg ladder connected with fermionic reservoirs, focusing on the decoherence effect induced by the reservoirs. In the absence of decoherence the system exhibits both bound states in the continuum and Fano resonances. We found that the Fano resonances in transmittance are robust against decoherence, at the same time decoherence prevents collapse of resonances induced by bound states in the continuum.