The single-photon transmission spectrum under the symmetrical atom–photon couplings (g1 = g2 = 0.2)
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Figure 2. The single-photon transmission spectrum under the symmetrical atom–photon couplings (g1 = g2 = 0.2). 2θ = 2π for the red line, 2θ = π for the blue line, and 2θ = 0.4π for the green line. The coupling strengths g1 and g2 are in units of Vg.
Based on the symmetric, asymmetric atom–photon couplings and the phase difference between two separated atoms, single-photon transport properties in an optical waveguide coupled with two separated two-level atoms are theoretically investigated. The transmission and reflection amplitudes for the single-photon propagation in such a hybrid system are deduced via a real-space approach. Several new phenomena such as phase-coupled induced transparency, single-photon switches, symmetric and asymmetric bifrequency photon attenuators are analyzed. In addition, the dissipation effect of such a hybrid system is also discussed.