Details

Autor(en) / Beteiligte

• Morse, Kevin J
• Abraham, Rohan J S
• DeAbreu, Adam
• Bowness, Camille
• Richards, Timothy S
• Riemann, Helge
• Abrosimov, Nikolay V
• Becker, Peter
• Pohl, Hans-Joachim
• Thewalt, Michael L W
• Simmons, Stephanie

Titel

A photonic platform for donor spin qubits in silicon

Ist Teil von

• Science advances, 2017-07, Vol.3 (7), p.e1700930-e1700930

Ort / Verlag

United States: American Association for the Advancement of Science

Erscheinungsjahr

2017

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Donor spins in silicon are highly competitive qubits for upcoming quantum technologies, offering complementary metal-oxide semiconductor compatibility, coherence ( ) 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 Se 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.