Nonreciprocal atomic scattering: A saturable, quantum Yagi-Uda antenna
Nonreciprocal atomic scattering: A saturable, quantum Yagi-Uda antenna
Recent theoretical studies of a pair of atoms in a 1D waveguide find that the system responds asymmetrically to incident fields from opposing directions at low powers. Since there is no explicit time-reversal symmetry breaking elements in the device, this has caused some debate. Here we show that the asymmetry …