Designing Fano-Like Quantum Routing via Atomic Dipole-Dipole Interactions
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Abstract
Fano-like quantum routing of single photons in a system with two waveguides coupled to two collocated atoms is investigated theoretically. Using a full quantum theory in real space, photonic scattering amplitudes along four ports of the waveguide network are analytically obtained. It is shown that, by adjusting the atomic dipole-dipole interaction, an evident Fano-line shape emerges in the scattering spectra of the single-dot configuration system. Moreover, Fano resonance can also be achieved by varying the atom-waveguide coupling strength and atomic detuning, in the presence of the atomic dipole-dipole interaction. Therefore, the atomic dipole-dipole interaction may be utilized as a possible way to control spectral Fano-like resonance. The feasibility with the experimental waveguide channels is also discussed.
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Jin-Song Huang, Jia-Hao Zhang, Yan Wang, Zhong-Hui Xu. Designing Fano-Like Quantum Routing via Atomic Dipole-Dipole Interactions[J]. Chin. Phys. Lett., 2018, 35(3): 034201. DOI: 10.1088/0256-307X/35/3/034201
Jin-Song Huang, Jia-Hao Zhang, Yan Wang, Zhong-Hui Xu. Designing Fano-Like Quantum Routing via Atomic Dipole-Dipole Interactions[J]. Chin. Phys. Lett., 2018, 35(3): 034201. DOI: 10.1088/0256-307X/35/3/034201
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Jin-Song Huang, Jia-Hao Zhang, Yan Wang, Zhong-Hui Xu. Designing Fano-Like Quantum Routing via Atomic Dipole-Dipole Interactions[J]. Chin. Phys. Lett., 2018, 35(3): 034201. DOI: 10.1088/0256-307X/35/3/034201
Jin-Song Huang, Jia-Hao Zhang, Yan Wang, Zhong-Hui Xu. Designing Fano-Like Quantum Routing via Atomic Dipole-Dipole Interactions[J]. Chin. Phys. Lett., 2018, 35(3): 034201. DOI: 10.1088/0256-307X/35/3/034201
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