Quantum control for time-dependent noise by inverse geometric optimization

被引：0

作者：

Xiaodong Yang ^{[1
]}

Yingcheng Li ^{[2
]}

Ran Liu ^{[1
]}

Xinfang Nie ^{[3
,4
]}

Tao Xin ^{[3
,4
]}

Dawei Lu ^{[3
,4
,5
]}

Jun Li ^{[1
,5
]}

机构：

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

[2] 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

[3] Shenzhen Institute for Quantum Science and Engineering and Department of Physics,Southern University of Science and Technology

[4] Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Southern University of Science and Technology

[5] Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area(Guangdong)

来源：

Science China(Physics,Mechanics & Astronomy) | 2024年 / 09期

关键词：

D O I：

暂无

中图分类号：

O413 [量子论];

学科分类号：

070201 ;

摘要：

Quantum systems are exceedingly difficult to engineer because they are sensitive to various types of noises. In particular, timedependent 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 evolution. 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.

引用

页码：55 / 61

页数：7