Super-robust nonadiabatic geometric quantum control

Liu，Bao Jie1; Wang，Yuan Sheng1,2; Yung，Man Hong1,3,4,5

2021-09-01

10.1103/PhysRevResearch.3.L032066

Physical Review Research   影响因子和分区

2643-1564

Nonadiabatic geometric quantum computation (NGQC) and nonadiabatic holonomic quantum computation (NHQC) have been proposed to reduce the run time of geometric quantum gates. However, in terms of robustness against experimental control errors, the existing NGQC and NHQC scenarios have no advantage over standard dynamical gates in most cases. Here, we give the reasons why nonadiabatic geometric gates are sensitive to the control errors and, further, we propose a scheme of super-robust nonadiabatic geometric quantum control, in which the super-robust condition can guarantee both high speed and robustness of the geometric gate. To illustrate the working mechanism of super-robust geometric quantum gates, we give two simple examples of SR-NGQC and SR-NHQC for two- and three-level quantum systems, respectively. Theoretical and numerical results with the experimental parameters indicate that our scheme can significantly improve the gate performance compared to the previous NGQC, NHQC, and standard dynamical schemes. Super-robust geometric quantum computation can be applied to various physical platforms such as superconducting qubits, quantum dots, and trapped ions. All of these sufficiently show that our scheme provides a promising way towards robust geometric quantum computation.

ESCI ; EI

英语

第一

WOS:000705660600003

20213810916942

Logic gates ; Quantum channel ; Robustness (control systems) ; Semiconductor quantum dots ; Trapped ions

Semiconductor Devices and Integrated Circuits:714.2 ; Logic Elements:721.2 ; Control Systems:731.1 ; Mathematics:921 ; Atomic and Molecular Physics:931.3

2-s2.0-85115890478

Scopus

1.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
2.School of Physical Sciences,University of Science and Technology of China,Hefei,230026,China
3.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Guangdong Provincial Key Laboratory of Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
5.Shenzhen Key Laboratory of Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Liu，Bao Jie,Wang，Yuan Sheng,Yung，Man Hong. Super-robust nonadiabatic geometric quantum control[J]. Physical Review Research,2021,3(3).

Liu，Bao Jie,Wang，Yuan Sheng,&Yung，Man Hong.(2021).Super-robust nonadiabatic geometric quantum control.Physical Review Research,3(3).

Liu，Bao Jie,et al."Super-robust nonadiabatic geometric quantum control".Physical Review Research 3.3(2021).