Manipulating single-photon transport in a waveguide-QED structure containing two giant atoms

We investigate coherent single-photon transport in a waveguide-QED structure containing two giant atoms. The unified analytical expressions of the scattering amplitudes applicable for different topological configurations are derived. spectroscopic characteristics parameter regimes, especially asymmetric Fano line shapes and electromagnetically induced transparency (EIT)-like spectra, analyzed detail. Specifically, we find that appearance is influenced by not only phase delays between coupling points but also topologies system. summarize general conditions EIT-like spectra analyzing master equation verify these checking corresponding spectra. These phenomena may provide powerful tools controlling manipulating photon future quantum networks.