Scalable ion–photon quantum interface based on integrated diffractive mirrors
Quantum computing: high-resolution optics built directly into a micro-fabricated ion trap Building large-scale quantum computers or distributed networks of quantum computers requires small-scale nodes to be readily replicated and effectively connected. Atomic ions trapped above the surface of micro-...
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| Autores principales: | , , , , , , , , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2017
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/f08bffa0381441868226632f5cb4ddb8 |
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| Sumario: | Quantum computing: high-resolution optics built directly into a micro-fabricated ion trap Building large-scale quantum computers or distributed networks of quantum computers requires small-scale nodes to be readily replicated and effectively connected. Atomic ions trapped above the surface of micro-fabricated chips are a leading method for implementing small, scalable, stationary quantum processing nodes. External communication between trapped ions has previously required bulky multi-element optics to create efficient photonic interconnections through single-mode optical fibers. Moji Ghadimi, with colleagues at Griffith University (Australia) and GeorgiaTech Research Institute, have overcome this hurdle with a demonstration of a chip trap with the primary optic integrated directly onto its surface. By patterning the flat reflective surface of the chip trap with a computer-generated hologram of a perfect focusing mirror they were able to image the ion’s fluorescence with nearly no distortions and couple that light efficiently into a single-mode fiber. This approach transfers optical complexity into the chip trap fabrication, where it can be more easily mass-produced. |
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