Coupling MOS quantum dot and phosphorous donor qubit systems
Autor: | Malcolm S. Carroll, G. Ten-Eyck, R. M. Jock, Tammy Pluym, Joel R. Wendt, T. Jacobson, Patrick Harvey-Collard, Ronald P. Manginell, Michael Lilly, Jason Dominguez, Martin Rudolph |
---|---|
Rok vydání: | 2016 |
Předmět: |
Physics
Quantum decoherence Condensed Matter - Mesoscale and Nanoscale Physics business.industry Exchange interaction FOS: Physical sciences Charge (physics) Quantum Physics 02 engineering and technology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology 01 natural sciences Noise (electronics) Condensed Matter::Materials Science Computer Science::Emerging Technologies Quantum dot Qubit Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences Optoelectronics 010306 general physics 0210 nano-technology Spin (physics) business Hyperfine structure |
Zdroj: | 2016 IEEE International Electron Devices Meeting (IEDM). |
Popis: | Si-MOS based QD qubits are attractive due to their similarity to the current semiconductor industry. We introduce a highly tunable MOS foundry compatible qubit design that couples an electrostatic quantum dot (QD) with an implanted donor. We show for the first time coherent two-axis control of a two-electron spin logical qubit that evolves under the QD-donor exchange interaction and the hyperfine interaction with the donor nucleus. The two interactions are tuned electrically with surface gate voltages to provide control of both qubit axes. Qubit decoherence is influenced by charge noise, which is of similar strength as epitaxial systems like GaAs and Si/SiGe. |
Databáze: | OpenAIRE |
Externí odkaz: |