Optimal adaptive control for quantum metrology with time-dependent Hamiltonians

Quantum metrology investigates the improvement given to precision measurements by exploiting quantum mechanics, but it has been mostly limited to systems with static Hamiltonians. Here the authors study it in the general case of time-varying Hamiltonians, showing that optimizing the quantum Fisher i...

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Main Authors:	Shengshi Pang, Andrew N. Jordan
Format:	article
Language:	EN
Published:	Nature Portfolio 2017
Subjects:	Science Q
Online Access:	https://doaj.org/article/12746a0877644f9fb831e1569d208fdc
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id	oai:doaj.org-article:12746a0877644f9fb831e1569d208fdc
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spelling	oai:doaj.org-article:12746a0877644f9fb831e1569d208fdc2021-12-02T14:40:33ZOptimal adaptive control for quantum metrology with time-dependent Hamiltonians10.1038/ncomms146952041-1723https://doaj.org/article/12746a0877644f9fb831e1569d208fdc2017-03-01T00:00:00Zhttps://doi.org/10.1038/ncomms14695https://doaj.org/toc/2041-1723Quantum metrology investigates the improvement given to precision measurements by exploiting quantum mechanics, but it has been mostly limited to systems with static Hamiltonians. Here the authors study it in the general case of time-varying Hamiltonians, showing that optimizing the quantum Fisher information via quantum control provides an advantage.Shengshi PangAndrew N. JordanNature PortfolioarticleScienceQENNature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q
spellingShingle	Science Q Shengshi Pang Andrew N. Jordan Optimal adaptive control for quantum metrology with time-dependent Hamiltonians
description	Quantum metrology investigates the improvement given to precision measurements by exploiting quantum mechanics, but it has been mostly limited to systems with static Hamiltonians. Here the authors study it in the general case of time-varying Hamiltonians, showing that optimizing the quantum Fisher information via quantum control provides an advantage.
format	article
author	Shengshi Pang Andrew N. Jordan
author_facet	Shengshi Pang Andrew N. Jordan
author_sort	Shengshi Pang
title	Optimal adaptive control for quantum metrology with time-dependent Hamiltonians
title_short	Optimal adaptive control for quantum metrology with time-dependent Hamiltonians
title_full	Optimal adaptive control for quantum metrology with time-dependent Hamiltonians
title_fullStr	Optimal adaptive control for quantum metrology with time-dependent Hamiltonians
title_full_unstemmed	Optimal adaptive control for quantum metrology with time-dependent Hamiltonians
title_sort	optimal adaptive control for quantum metrology with time-dependent hamiltonians
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/12746a0877644f9fb831e1569d208fdc
work_keys_str_mv	AT shengshipang optimaladaptivecontrolforquantummetrologywithtimedependenthamiltonians AT andrewnjordan optimaladaptivecontrolforquantummetrologywithtimedependenthamiltonians
_version_	1718390217880109056

Optimal adaptive control for quantum metrology with time-dependent Hamiltonians

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