Telecom-band quantum optics with ytterbium atoms and silicon nanophotonics
| Autor: | Oskar Painter, Neil Sinclair, Alp Sipahigil, Szilard Szoke, Manuel Endres, Jacob P. Covey |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Ytterbium
Photon Atomic Physics (physics.atom-ph) Nanophotonics General Physics and Astronomy chemistry.chemical_element FOS: Physical sciences Physics::Optics 02 engineering and technology 01 natural sciences Physics - Atomic Physics 0103 physical sciences 010306 general physics Quantum information science Quantum Quantum optics Physics Quantum network Quantum Physics business.industry 021001 nanoscience & nanotechnology 3. Good health chemistry 0210 nano-technology Telecommunications business Quantum Physics (quant-ph) Coherence (physics) Optics (physics.optics) Physics - Optics |
| Popis: | Wavelengths in the telecommunication window (~1.25-1.65 microns) are ideal for quantum communication due to low transmission loss in fiber networks. To realize quantum networks operating at these wavelengths, long-lived quantum memories that couple to telecom-band photons with high efficiency need to be developed. We propose coupling neutral ytterbium atoms, which have a strong telecom-wavelength transition, to a silicon photonic crystal cavity. Specifically, we consider the 3P0-3D1 transition in neutral 171Yb to interface its long-lived nuclear spin in the metastable 3P0 'clock' state with a telecom-band photon at 1.4 microns. We show that Yb atoms can be trapped using a short wavelength (~470 nm) tweezer at a distance of 350 nm from the silicon photonic crystal cavity. At this distance, due to the slowly decaying evanescent cavity field at a longer wavelength, we obtain a single-photon Rabi frequency of g/(2pi)~100 MHz and a cooperativity of C~47 while maintaining a high photon collection efficiency into a single mode fiber. The combination of high system efficiency, telecom-band operation, and long coherence times makes this platform well suited for quantum optics on a silicon chip and long-distance quantum communication. 12 pages, 7 figures |
| Databáze: | OpenAIRE |
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