Reconfigurable photothermal doping filament for selective spin manipulation and addressing
Abstract
The room temperature manipulation of solid-state spins provides an opportunity to develop quantum applications under ambient conditions. Local electromagnetic fields, that usually produced by current in micro/nanoscale metal wires, have been employed for the coherent driving and addressing of spin qubit. However, the fixed distribution limits the spatial selectivity and efficiency of qubit manipulation, which is of central importance in a scaled-up quantum system. Here, we report a solution by demonstrating a reconfigurable current with arbitrary shape to engineer microwave and DC magnetic field at microscale. A “photothermal doping” method was proposed to optically control local insulator-to-metal transition in vanadium dioxide. It generates a conducting filament with adjustable position, direction, and width. Universal manipulation and selective addressing of spins at arbitrary sites are realized, by freely changing the filament and electromagnetic field on demand. Our work paves the way for developing quantum devices with large-scale spin qubits.
Article Details
Journal Info
Proceedings of the National Academy of Sciences
National Academy of Sciences
Authors (13)
Zhi-Wei Liu
Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare Earth Materials Chemistry and Applications, Beijing Engineering Technology Research Centre of Active Display, College of Chemistry and Molecular Engineering
Meng-Qi Ma
Department of Optics and Optical Engineering, School of Physical Sciences
Bo-Wen Sun
Department of Accelerator Science and Engineering Physics, School of Nuclear Science and Technology
Liang Li
Wang Jiang
Department of Optics and Optical Engineering, School of Physical Sciences
Han-Xiang Zang
Department of Optics and Optical Engineering, School of Physical Sciences
Zhe Bai
Department of Optics and Optical Engineering, School of Physical Sciences
Yang Dong
State Key Laboratory of Advanced Chemical Power Sources, Frontiers Science Center for New Organic Matter (Ministry of Education), Engineering Center on High-efficiency Energy Storage (Ministry of Education), College of Chemistry
Shao-Chun Zhang
Department of Optics and Optical Engineering, School of Physical Sciences
Xiang-Dong Chen
Department of Optics and Optical Engineering, School of Physical Sciences
Chong-Wen Zou
Department of Accelerator Science and Engineering Physics, School of Nuclear Science and Technology
Guang-Can Guo
Department of Optics and Optical Engineering, School of Physical Sciences
Fang-Wen Sun