  We examine quantum interference effects due to absorption and emission from
multiple atoms coupled to a waveguide and highlight the modifications they
entail in regards to single-photon transport properties. A prominent upshot of
these interference phenomena is the resonant suppression of the reflection
amplitude, which leads to the observation of multiple Fano minima in the
reflection spectrum. Such minima determine the points at which transparency is
induced in the system. By taking recourse to the real-space Hamiltonian
framework, we calculate analytically the reflectivity and transmissivity for a
one-dimensional waveguide that evanescently couples to a chain of equally
spaced quantum emitters. The inter-emitter spacing relative to the wavelength
of the propagating photon, leading to a waveguide-mediated "phase-coupling"
between the atoms, is found to fundamentally affect the existence of Fano
minima. For a chain of $N$ atoms, the number of minima can be at most $N-1$.
However, suitable choices of the phase can suppress the discernibility of the
full range of roots in the reflection spectrum. A principal observation for the
case of multiple emitters is the emergence of super-Gaussian characteristics
close to zero-detuning and consequently, a plateau-shaped broadband spectrum in
the region of high reflectivity. For a large chain size, the plateau gets
transformed into a flat-topped quasi-rectangular profile in the frequency
domain.
