Nonadiabatic geometric quantum computation with shortened path on superconducting circuits

Ding, Cheng-Yun1,2; Liang, Yan1,2; Yu, Kai-Zhi1,2; Xue, Zheng-Yuan1,2,3,4,5

2021-11-01

10.1063/5.0071569

APPLIED PHYSICS LETTERS   影响因子和分区

0003-6951

1077-3118

Recently, nonadiabatic geometric quantum computation has received much attention due to its fast manipulation and intrinsic error-resilience characteristics. However, to obtain universal geometric quantum control, only limited and special evolution paths have been proposed, which usually require longer gate-time and more operational steps, and thus lead to lower quality of the implemented quantum gates. Here, we present an effective scheme to find the shortest geometric path under conventional conditions of geometric quantum computation, where high-fidelity and robust geometric gates can be realized by only single-loop evolution, and the gate performances are better than the corresponding dynamical ones. Furthermore, we can optimize the pulse shapes in our scheme to further shorten the gate-time, which is determined by how fast the path is traveled. In addition, we also present its physical implementation on superconducting circuits, consisting of capacitively coupled transmon qubits, where fidelities of geometric single- and two-qubit gates can be higher than 99.95% and 99.80% within the current state-of-the-art experimental technologies, respectively. These results indicate that our scheme is promising for large-scale fault-tolerant quantum computation.

SCI ; EI

英语

NI论文

通讯

Key-Area Research and Development Program of GuangDong Province[2018B030326001] ; National Natural Science Foundation of China[11874156] ; Guangdong Provincial Key Laboratory of Quantum Science and Engineering[2019B121203002] ; Science and Technology Program of Guangzhou[2019050001]

Physics

Physics, Applied

WOS:000715768700019

AIP Publishing

20214611141694

Qubits ; Timing circuits

Pulse Circuits:713.4 ; Light, Optics and Optical Devices:741 ; Nanotechnology:761 ; Mathematics:921

PHYSICS

Web of Science

1.South China Normal Univ, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
2.South China Normal Univ, Sch Phys & Telecommun Engn, Guangzhou 510006, Peoples R China
3.South China Normal Univ, Guangdong Hong Kong Joint Lab Quantum Matter, Guangzhou 510006, Peoples R China
4.South China Normal Univ, Frontier Res Inst Phys, Guangzhou 510006, Peoples R China
5.Southern Univ Sci & Technol, Guangdong Prov Key Lab Quantum Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China

Ding, Cheng-Yun,Liang, Yan,Yu, Kai-Zhi,et al. Nonadiabatic geometric quantum computation with shortened path on superconducting circuits[J]. APPLIED PHYSICS LETTERS,2021,119(18).

Ding, Cheng-Yun,Liang, Yan,Yu, Kai-Zhi,&Xue, Zheng-Yuan.(2021).Nonadiabatic geometric quantum computation with shortened path on superconducting circuits.APPLIED PHYSICS LETTERS,119(18).

Ding, Cheng-Yun,et al."Nonadiabatic geometric quantum computation with shortened path on superconducting circuits".APPLIED PHYSICS LETTERS 119.18(2021).