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Electrically controlling single-spin qubits in a continuous microwave field

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 electro...

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Autores principales: 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
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4640634/
https://www.ncbi.nlm.nih.gov/pubmed/26601166
http://dx.doi.org/10.1126/sciadv.1500022
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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
author_facet 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
author_sort Laucht, Arne
collection PubMed
description 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.
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spelling pubmed-46406342015-11-23 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. Morello, Andrea Sci Adv Research Articles 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. American Association for the Advancement of Science 2015-04-10 /pmc/articles/PMC4640634/ /pubmed/26601166 http://dx.doi.org/10.1126/sciadv.1500022 Text en Copyright © 2015, The Authors http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
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
Electrically controlling single-spin qubits in a continuous microwave field
title Electrically controlling single-spin qubits in a continuous microwave field
title_full Electrically controlling single-spin qubits in a continuous microwave field
title_fullStr Electrically controlling single-spin qubits in a continuous microwave field
title_full_unstemmed Electrically controlling single-spin qubits in a continuous microwave field
title_short Electrically controlling single-spin qubits in a continuous microwave field
title_sort electrically controlling single-spin qubits in a continuous microwave field
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4640634/
https://www.ncbi.nlm.nih.gov/pubmed/26601166
http://dx.doi.org/10.1126/sciadv.1500022
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