Guosheng Quantum Debuts at the 2025 Quantum Technology Standards and Industrialization Conference

Photon Box | PNAS Breakthrough! University of Science and Technology of China Team Pioneers "Photothermal Doping" Technology, Achieving High-Precision Addressing of Spin Qubits

In the field of quantum technology, solid-state spin defects are considered one of the most promising platforms for building applications such as quantum computing and quantum sensing due to their long coherence times and stable fluorescence emission at room temperature. However, efficiently and flexibly manipulating and addressing solid-state spin qubits has always been a core challenge for the large-scale application of quantum technology. Traditional methods rely on local electromagnetic fields generated by micro-nano metal wires or fixed nanostructures, whose distribution is not adjustable, resulting in poor spatial selectivity and limited control efficiency.

University of Science and Technology of China | Academician Guo Guangcan's team, Sun Fangwen's research group, achieves arbitrarily reconfigurable optically controlled micro-nano current pathways

Recently, the research team led by Academician Guo Guangcan, Sun Fangwen's group, in collaboration with Zou Chongwen's group from the National Synchrotron Radiation Laboratory/School of Nuclear Science and Technology, achieved optical control of the local insulator-metal phase transition in vanadium dioxide (VO2) thin films. This enabled the creation of micro-nano current pathways with arbitrarily reconfigurable shapes and demonstrated their application in solid-state spin quantum control. Zhang Shaochun, CTO of Guosheng Quantum, was deeply involved in this work. The results were published on August 29 under the title "Reconfigurable photothermal doping filament for selective spin manipulation and addressing" in the Proceedings of the National Academy of Sciences (PNAS).

Popular Science China | Quantum Current Transformer: The Quantum "Insight" in Diamonds

In the previous two articles, we learned about the basic principles of quantum precision measurement and became familiar with a key material—the NV center, which can sense magnetic fields and temperature, and can also read quantum state information with extremely high precision.

Popular Science China | The Quantum Revolution of Diamonds: This "Atomic-Level Eye" is Reshaping Measurement Limits

In the previous article, we introduced the cutting-edge technology of "quantum precision measurement": it can achieve ultra-high precision measurements of physical quantities such as time, magnetic fields, and electric currents by manipulating the quantum states of microscopic particles. Simply put: prepare quantum materials, observe the state changes they undergo under the influence of external physical quantities, and then read out these changes to calculate the magnitude of the external physical quantities.

QuantumDiamond raises 7 million seed funding

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Academician Guo Guangcan's signed article published in the Learning Times: How quantum technology will reconstruct our lives

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Technology Daily article: Diamond quantum sensors have become the forefront of international quantum competition

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Anhui: Focus on building a leading highland for quantum information science and technology innovation

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