| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Designing Fano-Like Quantum Routing via Atomic Dipole-Dipole Interactions |
| Jin-Song Huang1,2**, Jia-Hao Zhang1, Yan Wang3, Zhong-Hui Xu1 |
1School of Information Engineering, Jiangxi University of Science and Technology, Ganzhou 341000
2Department of Physics, South China University of Technology, Guangzhou 510640
3School of Foreign Studies, Jiangxi University of Science and Technology, Ganzhou 341000
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| Cite this article: |
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Jin-Song Huang, Jia-Hao Zhang, Yan Wang et al 2018 Chin. Phys. Lett. 35 034201 |
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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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Received: 23 October 2017
Published: 25 February 2018
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| PACS: |
42.50.Ct
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(Quantum description of interaction of light and matter; related experiments)
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42.79.Gn
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(Optical waveguides and couplers)
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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| Fund: Supported by the National Natural Science Foundation of China under Grant No 11247032, the Natural Science Foundation of Jiangxi Province under Grant Nos 20151BAB202012 and 20151BAB212004, and the Scientific Research Foundation of the Jiangxi Provincial Education Department under Grant No GJJ160633. |
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