Electrically controlling single-spin qubits in a continuous microwave field

Laucht, Arne, Muhonen, Juha T., Mohiyaddin, Fahd A., Kalra, Rachpon, Dehollain, Juan P., Freer, Solomon, Hudson, Fay E., Veldhorst, Menno, Rahman, Rajib, Klimeck, Gerhard, Itoh, Kohei M., Jamieson, David N., McCallum, Jeffrey C., Dzurak, Andrew S. and Morello, Andrea (2015) Electrically controlling single-spin qubits in a continuous microwave field. Science Advances, 1 3: e1500022. doi:10.1126/sciadv.1500022

Author Laucht, Arne
Muhonen, Juha T.
Mohiyaddin, Fahd A.
Kalra, Rachpon
Dehollain, Juan P.
Freer, Solomon
Hudson, Fay E.
Veldhorst, Menno
Rahman, Rajib
Klimeck, Gerhard
Itoh, Kohei M.
Jamieson, David N.
McCallum, Jeffrey C.
Dzurak, Andrew S.
Morello, Andrea
Title Electrically controlling single-spin qubits in a continuous microwave field
Journal name Science Advances   Check publisher's open access policy
ISSN 2375-2548
Publication date 2015-04-10
Sub-type Article (original research)
DOI 10.1126/sciadv.1500022
Open Access Status DOI
Volume 1
Issue 3
Start page e1500022
Total pages 5
Place of publication Washington, DC United States
Publisher American Association for the Advancement of Science
Language eng
Abstract Large-scale quantum computers must be built upon quantum bits that are both highly coherent and locally controllable. We demonstrate the quantum control of the electron and the nuclear spin of a single 31P atom in silicon, using a continuous microwave magnetic field together with nanoscale electrostatic gates. The qubits are tuned into resonance with the microwave field by a local change in electric field, which induces a Stark shift of the qubit energies. This method, known as A-gate control, preserves the excellent coherence times and gate fidelities of isolated spins, and can be extended to arbitrarily many qubits without requiring multiple microwave sources.
Keyword Quantum computing
Single-atom spin qubits
Silicon nanoelectronics
Local electrical control
Magnetic resonance
Phosphorus donor
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
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Citation counts: TR Web of Science Citation Count  Cited 35 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 08 May 2017, 16:07:12 EST by Rachpon Kalra on behalf of School of Mathematics & Physics