Nonreciprocal and chiral single-photon scattering for giant atoms
Two-level giant atom coupled to a single waveguideAs schematically shown in Fig. 1a, we consider a two-level giant atom coupled to a waveguide at two separated points x = 0 and x = d. The atom-waveguide coupling coefficients are \(g{e}^{i{\theta }_{1}}\) and \(g{e}^{i{\theta }_{2}}\), respectively, with local coupling phases...