The two-photon interference mediated by the magnetic resonance in two-dimensional metamaterial. (English) Zbl 1264.81094
Summary: Nowadays, the quantum information processing has been carrying out in variety of solid state systems, such as superconductors, dielectrics, and metallic nano-structures. Here, we investigated the quantum properties of magnetic resonance in a two-dimensional metamaterial with the split-hole resonator structure. The sample was placed in path of entangled photons produced from spontaneous parametric down-conversion process, and a two-photon interference was performed. Such a two-dimensional metamaterial was able to convert photons into magnetic resonances, and reradiate as photons at the other side. A Hong-Ou-Mandel dip with a visibility of \(89.4 \pm 6.0 \%\) was explicitly observed, which indicated that the magnetic resonance do own a quantum nature. This will be useful for future researches at the interface between metamaterials and quantum information processing.
MSC:
| 81P45 | Quantum information, communication, networks (quantum-theoretic aspects) |
| 81V80 | Quantum optics |
| 82D40 | Statistical mechanics of magnetic materials |
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