A photonic platform for donor spin qubits in silicon
| Autor: | Camille Bowness, Hans-Joachim Pohl, K. J. Morse, Timothy S. Richards, Mike L. W. Thewalt, Adam DeAbreu, Helge Riemann, Stephanie Simmons, Rohan J. S. Abraham, Nikolay V. Abrosimov, Peter Becker |
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| Rok vydání: | 2017 |
| Předmět: |
Silicon
Physics::Optics chemistry.chemical_element 02 engineering and technology 01 natural sciences 7. Clean energy Quantum error correction 0103 physical sciences 010306 general physics Research Articles Quantum computer Physics Quantum Physics Multidisciplinary Silicon photonics business.industry Cavity quantum electrodynamics SciAdv r-articles 021001 nanoscience & nanotechnology Quantum technology chemistry Qubit Optoelectronics Photonics 0210 nano-technology business Research Article |
| Zdroj: | Science Advances |
| ISSN: | 2375-2548 |
| Popis: | Chalcogen donors in silicon enable a scalable photonic cavity quantum electrodynamics solution for universal quantum computing. Donor spins in silicon are highly competitive qubits for upcoming quantum technologies, offering complementary metal-oxide semiconductor compatibility, coherence (T2) times of minutes to hours, and simultaneous initialization, manipulation, and readout fidelities near ~99.9%. This allows for many quantum error correction protocols, which will be essential for scale-up. However, a proven method of reliably coupling spatially separated donor qubits has yet to be identified. We present a scalable silicon-based platform using the unique optical properties of “deep” chalcogen donors. For the prototypical 77Se+ donor, we measure lower bounds on the transition dipole moment and excited-state lifetime, enabling access to the strong coupling limit of cavity quantum electrodynamics using known silicon photonic resonator technology and integrated silicon photonics. We also report relatively strong photon emission from this same transition. These results unlock clear pathways for silicon-based quantum computing, spin-to-photon conversion, photonic memories, integrated single-photon sources, and all-optical switches. |
| Databáze: | OpenAIRE |
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