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Laucht A, Muhonen JT, Mohiyaddin FA, et al. Electrically controlling single-spin qubits in a continuous microwave field. Sci Adv. 2015;1(3):e1500022doi: 10.1126/sciadv.1500022.
Laucht, A., Muhonen, J. T., Mohiyaddin, F. A., Kalra, R., Dehollain, J. P., Freer, S., Hudson, F. E., Veldhorst, M., Rahman, R., Klimeck, G., Itoh, K. M., Jamieson, D. N., McCallum, J. C., Dzurak, A. S., & Morello, A. (2015). Electrically controlling single-spin qubits in a continuous microwave field. Science advances, 1(3), e1500022. https://doi.org/10.1126/sciadv.1500022
Laucht, Arne, et al. "Electrically controlling single-spin qubits in a continuous microwave field." Science advances vol. 1,3 (2015): e1500022. doi: https://doi.org/10.1126/sciadv.1500022
Laucht A, Muhonen JT, Mohiyaddin FA, Kalra R, Dehollain JP, Freer S, Hudson FE, Veldhorst M, Rahman R, Klimeck G, Itoh KM, Jamieson DN, McCallum JC, Dzurak AS, Morello A. Electrically controlling single-spin qubits in a continuous microwave field. Sci Adv. 2015 Apr 10;1(3):e1500022. doi: 10.1126/sciadv.1500022. eCollection 2015 Apr. PMID: 26601166; PMCID: PMC4640634.
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Sci Adv. 2015 Apr 10;1(3):e1500022. doi: 10.1126/sciadv.1500022. eCollection 2015 Apr.

Electrically controlling single-spin qubits in a continuous microwave field.

Science advances

Arne Laucht, Juha T Muhonen, Fahd A Mohiyaddin, Rachpon Kalra, Juan P Dehollain, Solomon Freer, Fay E Hudson, Menno Veldhorst, Rajib Rahman, Gerhard Klimeck, Kohei M Itoh, David N Jamieson, Jeffrey C McCallum, Andrew S Dzurak, Andrea Morello

Affiliations

  1. Centre for Quantum Computation and Communication Technology, School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, New South Wales 2052, Australia.
  2. Network for Computational Nanotechnology, Purdue University, West Lafayette, IN 47907, USA.
  3. School of Fundamental Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
  4. Centre for Quantum Computation and Communication Technology, School of Physics, University of Melbourne, Melbourne, Victoria 3010, Australia.

PMID: 26601166 PMCID: PMC4640634 DOI: 10.1126/sciadv.1500022

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 (31)P 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.

Keywords: Local electrical control; Magnetic resonance; Phosphorus donor; Quantum computing; Silicon nanoelectronics; Single-atom spin qubits

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