Quantum Fourier transform for nanoscale quantum sensing

Abstract The quantum Fourier transformation (QFT) is a key building block for a whole wealth of quantum algorithms. Despite its proven efficiency, only a few proof-of-principle demonstrations have been reported. Here we utilize QFT to enhance the performance of a quantum sensor. We implement the QFT...

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Autores principales:	Vadim Vorobyov, Sebastian Zaiser, Nikolas Abt, Jonas Meinel, Durga Dasari, Philipp Neumann, Jörg Wrachtrup
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/34be9d64cfe540fe931175307bdb2cc8
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spelling	oai:doaj.org-article:34be9d64cfe540fe931175307bdb2cc82021-12-02T19:06:44ZQuantum Fourier transform for nanoscale quantum sensing10.1038/s41534-021-00463-62056-6387https://doaj.org/article/34be9d64cfe540fe931175307bdb2cc82021-08-01T00:00:00Zhttps://doi.org/10.1038/s41534-021-00463-6https://doaj.org/toc/2056-6387Abstract The quantum Fourier transformation (QFT) is a key building block for a whole wealth of quantum algorithms. Despite its proven efficiency, only a few proof-of-principle demonstrations have been reported. Here we utilize QFT to enhance the performance of a quantum sensor. We implement the QFT algorithm in a hybrid quantum register consisting of a nitrogen-vacancy (NV) center electron spin and three nuclear spins. The QFT runs on the nuclear spins and serves to process the sensor—i.e., the NV electron spin signal. Specifically, we show the application of QFT for correlation spectroscopy, where the long correlation time benefits the use of the QFT in gaining maximum precision and dynamic range at the same time. We further point out the ability for demultiplexing the nuclear magnetic resonance (NMR) signals using QFT and demonstrate precision scaling with the number of used qubits. Our results mark the application of a complex quantum algorithm in sensing which is of particular interest for high dynamic range quantum sensing and nanoscale NMR spectroscopy experiments.Vadim VorobyovSebastian ZaiserNikolas AbtJonas MeinelDurga DasariPhilipp NeumannJörg WrachtrupNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 7, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95
spellingShingle	Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Vadim Vorobyov Sebastian Zaiser Nikolas Abt Jonas Meinel Durga Dasari Philipp Neumann Jörg Wrachtrup Quantum Fourier transform for nanoscale quantum sensing
description	Abstract The quantum Fourier transformation (QFT) is a key building block for a whole wealth of quantum algorithms. Despite its proven efficiency, only a few proof-of-principle demonstrations have been reported. Here we utilize QFT to enhance the performance of a quantum sensor. We implement the QFT algorithm in a hybrid quantum register consisting of a nitrogen-vacancy (NV) center electron spin and three nuclear spins. The QFT runs on the nuclear spins and serves to process the sensor—i.e., the NV electron spin signal. Specifically, we show the application of QFT for correlation spectroscopy, where the long correlation time benefits the use of the QFT in gaining maximum precision and dynamic range at the same time. We further point out the ability for demultiplexing the nuclear magnetic resonance (NMR) signals using QFT and demonstrate precision scaling with the number of used qubits. Our results mark the application of a complex quantum algorithm in sensing which is of particular interest for high dynamic range quantum sensing and nanoscale NMR spectroscopy experiments.
format	article
author	Vadim Vorobyov Sebastian Zaiser Nikolas Abt Jonas Meinel Durga Dasari Philipp Neumann Jörg Wrachtrup
author_facet	Vadim Vorobyov Sebastian Zaiser Nikolas Abt Jonas Meinel Durga Dasari Philipp Neumann Jörg Wrachtrup
author_sort	Vadim Vorobyov
title	Quantum Fourier transform for nanoscale quantum sensing
title_short	Quantum Fourier transform for nanoscale quantum sensing
title_full	Quantum Fourier transform for nanoscale quantum sensing
title_fullStr	Quantum Fourier transform for nanoscale quantum sensing
title_full_unstemmed	Quantum Fourier transform for nanoscale quantum sensing
title_sort	quantum fourier transform for nanoscale quantum sensing
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/34be9d64cfe540fe931175307bdb2cc8
work_keys_str_mv	AT vadimvorobyov quantumfouriertransformfornanoscalequantumsensing AT sebastianzaiser quantumfouriertransformfornanoscalequantumsensing AT nikolasabt quantumfouriertransformfornanoscalequantumsensing AT jonasmeinel quantumfouriertransformfornanoscalequantumsensing AT durgadasari quantumfouriertransformfornanoscalequantumsensing AT philippneumann quantumfouriertransformfornanoscalequantumsensing AT jorgwrachtrup quantumfouriertransformfornanoscalequantumsensing
_version_	1718377140783677440

Quantum Fourier transform for nanoscale quantum sensing

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