Results 1–25 of 54
Skip to search filters

All-electrical universal control of a double quantum dot qubit in silicon MOS

Technical Digest - International Electron Devices Meeting, IEDM

Harvey-Collard, Patrick; Jock, Ryan M.; Jacobson, Noah T.; Baczewski, Andrew D.; Mounce, Andrew M.; Curry, Matthew J.; Ward, Daniel R.; Anderson, John M.; Manginell, Ronald P.; Wendt, J.R.; Rudolph, Martin R.; Pluym, Tammy P.; Lilly, Michael L.; Pioro-Ladrière, Michel; Carroll, Malcolm

Qubits based on transistor-like Si MOS nanodevices are promising for quantum computing. In this work, we demonstrate a double quantum dot spin qubit that is all-electrically controlled without the need for any external components, like micromagnets, that could complicate integration. Universal control of the qubit is achieved through spin-orbit-like and exchange interactions. Using single shot readout, we show both DC- and AC-control techniques. The fabrication technology used is completely compatible with CMOS.

More Details

Tunnel coupling tuning of a QD-donor S-T qubit

Jock, Ryan M.; Jock, Ryan M.; Rudolph, Martin R.; Rudolph, Martin R.; Harvey-Collard, Patrick H.; Harvey-Collard, Patrick H.; Jacobson, Noah T.; Jacobson, Noah T.; Wendt, J.R.; Wendt, J.R.; Pluym, Tammy P.; Pluym, Tammy P.; Dominguez, Jason J.; Dominguez, Jason J.; Manginell, Ronald P.; Manginell, Ronald P.; Lilly, Michael L.; Lilly, Michael L.; Carroll, Malcolm; Carroll, Malcolm

Abstract not provided.

Coupling MOS quantum dot and phosphorous donor qubit systems

IEEE International Electron Devices Meeting

Rudolph, Martin R.; Jock, Ryan M.; Jacobson, Noah T.; Wendt, J.R.; Pluym, Tammy P.; Dominguez, Jason J.; Ten Eyck, Gregory A.; Manginell, Ronald P.; Lilly, Michael L.; Carroll, Malcolm; Harvey-Collard, Patrick H.

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.

More Details
Results 1–25 of 54
Results 1–25 of 54