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npj Quantum Information, volume 4, issue 1, publication number 29

Quantum-enhanced magnetometry by phase estimation algorithms with a single artificial atom

Danilin S. ¹

LEBEDEV A.V. ^{2, 3}

Vepsäläinen A ¹

Lesovik G.B. ^{3, 4}

BLATTER G. ²

Paraoanu G. S. ¹

Hide authors affiliations Show authors affiliations: 4 affiliations

Low Temperature Laboratory, Department of Applied Physics, Aalto University School of Science, AALTO, Finland |

Theoretische Physik, Zürich, Switzerland |

Moscow Institute of Physics and Technology, Dolgoprudny, Russia |

⁴

L.D. Landau Institute for Theoretical Physics RAS, Chernogolovka, Russia |

Publication type: Journal Article

Publication date: 2018-06-29

Springer Nature

Journal: npj Quantum Information

Quartile SCImago

Quartile WOS

Impact factor: 7.6

ISSN: 20566387

DOI: 10.1038/s41534-018-0078-y

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Statistical and Nonlinear Physics

Computer Science (miscellaneous)

Computational Theory and Mathematics

Computer Networks and Communications

Abstract

Phase estimation algorithms are key protocols in quantum information processing. Besides applications in quantum computing, they can also be employed in metrology as they allow for fast extraction of information stored in the quantum state of a system. Here, we implement two suitably modified phase estimation procedures, the Kitaev and the semiclassical Fourier-transform algorithms, using an artificial atom realized with a superconducting transmon circuit. We demonstrate that both algorithms yield a flux sensitivity exceeding the classical shot-noise limit of the device, allowing one to approach the Heisenberg limit. Our experiment paves the way for the use of superconducting qubits as metrological devices which are potentially able to outperform the best existing flux sensors with a sensitivity enhanced by few orders of magnitude. Quantum computing algorithms can improve the performance of a superconducting magnetic field sensor beyond the classical limit. A qubit’s time evolution is often influenced by environmental factors like magnetic fields; measuring this evolution allows the magnetic field strength to be determined. Using classical methods, improvements in measurement performance can only scale with the square root of the total measurement time. However, by exploiting quantum coherence to use so-called phase estimation algorithms during the measurements, the scaling with measurement time can be driven beyond the classical limits. Andrey Lebedev at ETH Zurich and colleagues in Finland, Switzerland and Russia have applied this approach to superconducting qubits. They demonstrate both superior performance and improved scaling compared to the classical approach, and show that in principle superconducting qubits can become the highest-performing magnetic flux sensors.

By date By citations

Citations by journals

	1 2 3 4 5
Physical Review A	Physical Review A, 5, 12.5% Physical Review A 5 publications, 12.5%
Scientific Reports	Scientific Reports, 4, 10% Scientific Reports 4 publications, 10%
npj Quantum Information	npj Quantum Information, 3, 7.5% npj Quantum Information 3 publications, 7.5%
Applied Physics Letters	Applied Physics Letters, 2, 5% Applied Physics Letters 2 publications, 5%
Physical Review B	Physical Review B, 2, 5% Physical Review B 2 publications, 5%
EPJ Quantum Technology	EPJ Quantum Technology, 2, 5% EPJ Quantum Technology 2 publications, 5%
Nature Communications	Nature Communications, 2, 5% Nature Communications 2 publications, 5%
Quantum Science and Technology	Quantum Science and Technology, 2, 5% Quantum Science and Technology 2 publications, 5%
Optics Express	Optics Express, 2, 5% Optics Express 2 publications, 5%
AIP Conference Proceedings	AIP Conference Proceedings, 2, 5% AIP Conference Proceedings 2 publications, 5%
Physical Review Research	Physical Review Research, 1, 2.5% Physical Review Research 1 publication, 2.5%
Reviews of Modern Physics	Reviews of Modern Physics, 1, 2.5% Reviews of Modern Physics 1 publication, 2.5%
Physical Review Applied	Physical Review Applied, 1, 2.5% Physical Review Applied 1 publication, 2.5%
AVS Quantum Science	AVS Quantum Science, 1, 2.5% AVS Quantum Science 1 publication, 2.5%
International Journal of Quantum Information	International Journal of Quantum Information, 1, 2.5% International Journal of Quantum Information 1 publication, 2.5%
Entropy	Entropy, 1, 2.5% Entropy 1 publication, 2.5%
Mineral Economics	Mineral Economics, 1, 2.5% Mineral Economics 1 publication, 2.5%
Metrologia	Metrologia, 1, 2.5% Metrologia 1 publication, 2.5%
New Journal of Physics	New Journal of Physics, 1, 2.5% New Journal of Physics 1 publication, 2.5%
Advanced Quantum Technologies	Advanced Quantum Technologies, 1, 2.5% Advanced Quantum Technologies 1 publication, 2.5%
Annalen der Physik	Annalen der Physik, 1, 2.5% Annalen der Physik 1 publication, 2.5%
Proceedings of the National Academy of Sciences of the United States of America	Proceedings of the National Academy of Sciences of the United States of America, 1, 2.5% Proceedings of the National Academy of Sciences of the United States of America 1 publication, 2.5%
PRX Quantum	PRX Quantum, 1, 2.5% PRX Quantum 1 publication, 2.5%
	1 2 3 4 5

Citations by publishers

	2 4 6 8 10 12
Springer Nature	Springer Nature, 12, 30% Springer Nature 12 publications, 30%
American Physical Society (APS)	American Physical Society (APS), 11, 27.5% American Physical Society (APS) 11 publications, 27.5%
American Institute of Physics (AIP)	American Institute of Physics (AIP), 4, 10% American Institute of Physics (AIP) 4 publications, 10%
IOP Publishing	IOP Publishing, 4, 10% IOP Publishing 4 publications, 10%
Wiley	Wiley, 2, 5% Wiley 2 publications, 5%
Optical Society of America	Optical Society of America, 2, 5% Optical Society of America 2 publications, 5%
American Vacuum Society	American Vacuum Society, 1, 2.5% American Vacuum Society 1 publication, 2.5%
World Scientific	World Scientific, 1, 2.5% World Scientific 1 publication, 2.5%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 1, 2.5% Multidisciplinary Digital Publishing Institute (MDPI) 1 publication, 2.5%
Proceedings of the National Academy of Sciences (PNAS)	Proceedings of the National Academy of Sciences (PNAS), 1, 2.5% Proceedings of the National Academy of Sciences (PNAS) 1 publication, 2.5%
	2 4 6 8 10 12

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Danilin S. et al. Quantum-enhanced magnetometry by phase estimation algorithms with a single artificial atom // npj Quantum Information. 2018. Vol. 4. No. 1. 29

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Danilin S., LEBEDEV A., Vepsäläinen A., Lesovik G., BLATTER G., Paraoanu G. S. Quantum-enhanced magnetometry by phase estimation algorithms with a single artificial atom // npj Quantum Information. 2018. Vol. 4. No. 1. 29

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TY - JOUR

DO - 10.1038/s41534-018-0078-y

UR - https://doi.org/10.1038%2Fs41534-018-0078-y

TI - Quantum-enhanced magnetometry by phase estimation algorithms with a single artificial atom

T2 - npj Quantum Information

AU - Danilin, S.

AU - LEBEDEV, A.V.

AU - Lesovik, G.B.

AU - BLATTER, G.

AU - Paraoanu, G. S.

AU - Vepsäläinen, A

PY - 2018

DA - 2018/06/29 00:00:00

PB - Springer Nature

IS - 1

VL - 4

SN - 2056-6387

ER -

BibTex

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BibTex Copy

@article{2018_Danilin,

author = {S. Danilin and A.V. LEBEDEV and G.B. Lesovik and G. BLATTER and G. S. Paraoanu and A Vepsäläinen},

title = {Quantum-enhanced magnetometry by phase estimation algorithms with a single artificial atom},

journal = {npj Quantum Information},

year = {2018},

volume = {4},

publisher = {Springer Nature},

month = {jun},

url = {https://doi.org/10.1038%2Fs41534-018-0078-y},

number = {1},

doi = {10.1038/s41534-018-0078-y}

}

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Publisher

Springer Nature

Journal

npj Quantum Information

Quartile SCImago

Quartile WOS

Impact factor

7.6

ISSN

20566387 (Electronic)

Profiles

Lebedev, Andrey V