Manipulations of a transmon qubit with a null-biased electro-optic fiber link

Wenqu Xu, Tingting Guo, Kaixuan Zhang, Zishuo Li, Tianshi Zhou, Quan Zuo, Yifan Sheng, Lingxiao Jing, Huashi Ma, Mingyuan Yu, Shunhong Zhou, Binglin Li, Shiyao Yang, Yongyang Yu, Junzhou Zhang, Jiyuan Zhu, Chunhai Cao, Guanghao Zhu (), Guozhu Sun () and Peiheng Wu
Additional contact information
Wenqu Xu: Nanjing University
Tingting Guo: Nanjing University
Kaixuan Zhang: Nanjing University
Zishuo Li: Nanjing University
Tianshi Zhou: Nanjing University
Quan Zuo: Nanjing University
Yifan Sheng: Nanjing University
Lingxiao Jing: Nanjing University
Huashi Ma: Nanjing University
Mingyuan Yu: Nanjing University
Shunhong Zhou: Nanjing University
Binglin Li: Nanjing University
Shiyao Yang: Nanjing University
Yongyang Yu: Nanjing University
Junzhou Zhang: Nanjing University
Jiyuan Zhu: Nanjing University
Chunhai Cao: Nanjing University
Guanghao Zhu: Nanjing University
Guozhu Sun: Nanjing University
Peiheng Wu: Nanjing University

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: Abstract In recent years, significant progress has been made in the field of superconducting quantum circuits, particularly in improving the complexity of quantum processors for large-scale quantum computing and quantum simulation tasks. To enable the execution of quantum information processing tasks on large-scale quantum circuits containing millions of qubits, it is essential to minimize thermal effects on control and measurement lines, ensuring that circuit components are superconducting and that qubits are not significantly thermally excited. Recent studies have shown that a quadrature-biased electro-optic fiber link can operate qubits with a much reduced thermal load, thereby facilitating the simultaneous operation of a large number of qubits. Expanding on this, here we propose and demonstrate that coherent manipulations of superconducting qubits can also be achieved by setting the bias point of the electro-optic modulator at the null point instead of the quadrature point. Major advantages of our null-point bias method include further reduction of the thermal load and improvement of the signal-to-noise ratio, and relaxed requirement for experimental implementations. Simultaneous control of two qubits is also demonstrated using the proposed null-biased fiber-optic link, which is the first time to the best of our knowledge.

Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-025-57820-8 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-57820-8

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-025-57820-8

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().