Brief Introduction

Xinxin Cai is an assistant professor at the Southern University of Science and Technology. Dr. Cai’s research interests lie at the intersection of experimental condensed matter physics and quantum information processing. By leveraging advanced nanofabrication techniques and electrical measurement and control methods, her work explores quantum effects in micro- and nanoscale electronic devices. Recent research focuses on the coherent control of electron spin qubits based on silicon quantum dots and the dynamics of spin-based quantum devices.

The lab actively recruits Ph.D. students, master’s students, and postdoctoral researchers. Students and scholars interested in these fields are encouraged to contact us. 

Research Interests

◆Semiconductor quantum dots and spin qubits

◆Quantum materials and devices

Educational Background

◆2009-2016, The Pennsylvania State University, Ph.D. in Physics

◆2004-2008, University of Science and Technology of China, B.S. in Applied Physics

Professional Experience

◆2024/11-present, Southern University of Science and Technology, Assistant professor

◆2020/9-2024/6, University of Rochester, Postdoctoral associate 

◆2017/5-2020/8, University of Minnesota, Postdoctoral associate

Selected Publications

1. X. Cai, H. Y. Walelign, L. F. Edge, and J. M. Nichol, “The nuclear-spin dark state in silicon”, arXiv: 2405.14922 (2024).

2. H. Y. Walelign, X. Cai, B. Li, E. Barnes, and J. M. Nichol, “Dynamically corrected gates in silicon singlet-triplet spin qubits”, Physical Review Applied 22, 064029 (2024).

3. X. Cai, E. J. Connors, L. F. Edge, and J. M. Nichol, “Coherent spin-valley oscillations in silicon”, Nature Physics 19, 386 (2023).

4. X. Cai, B. M. Zakrzewski, Y. A. Ying, H.-Y. Kee, M. Sigrist, J. E. Ortmann, W. Sun, Z.-Q. Mao, and Y. Liu, “Magnetoresistance oscillation study of the spin counterflow half-quantum vortex in doubly connected mesoscopic superconducting cylinders of Sr2RuO4”, Physical Review B 105, 224510 (2022).

5. X. Cai, J. Yue, X. Peng, B. Jalan, and V. S. Pribiag, “From weak antilocalization to Kondo scattering in a magnetic complex oxide interface”, Physical Review B 103, 115434 (2021).