首页|Quantum control for time-dependent noise by inverse geometric optimization

Quantum control for time-dependent noise by inverse geometric optimization

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Quantum systems are exceedingly difficult to engineer because they are sensitive to various types of noises.In particular,time-dependent noises are frequently encountered in experiments but how to overcome them remains a challenging problem.In this work,we propose a flexible robust control technique to resist time-dependent noises based on inverse geometric optimization working in the filter-function formalism.The basic idea is to parameterize the control filter function geometrically and minimize its overlap with the noise spectral density.This then effectively reduces the noise susceptibility of the controlled system evolu-tion.We show that the proposed method can produce high-quality robust pulses for realizing desired quantum evolutions under realistic noise models.Also,we demonstrate this method in examples including dynamical decoupling and quantum sensing protocols to enhance their performances.

time-dependent noiserobust controlquantum gates and statesdynamical decouplingquantum sensing

Xiaodong Yang、Yingcheng Li、Ran Liu、Xinfang Nie、Tao Xin、Dawei Lu、Jun Li

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Institute of Quantum Precision Measurement,State Key Laboratory of Radio Frequency Heterogeneous Integration,College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,China

State Key Laboratory of Surface Physics,Department of Physics,Center for Field Theory and Particle Physics,and Institute for Nanoelectronic Devices and Quantum Computing,Fudan University,Shanghai 200433,China

Shenzhen Institute for Quantum Science and Engineering and Department of Physics,Southern University of Science and Technology,Shenzhen 518055,China

Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China

Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area(Guangdong),Shenzhen 518045,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaGuangdong Basic and Applied Basic Research FoundationGuangdong Basic and Applied Basic Research FoundationGuangdong Basic and Applied Basic Research FoundationGuangdong Provincial Key LaboratoryGuangdong International Collaboration ProgramShenzhen Science and Technology ProgramShenzhen Science and Technology ProgramScience,Technology and Innovation Commission of Shenzhen MunicipalityScience,Technology and Innovation Commission of Shenzhen MunicipalityScience,Technology and Innovation Commission of Shenzhen MunicipalityPengcheng Scholars,Guangdong Innovative and Entrepreneurial Research Team ProgramPearl River Talent Recruitment Program

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2024

10.1007/s11433-024-2411-y

中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子：0.91
ISSN：1674-7348
年,卷(期)：2024.67(9)