科学家打造出新型钻石量子传感器

Core Insights - A research team from Princeton University has developed a new type of diamond quantum sensor that enhances magnetic field detection sensitivity by approximately 40 times compared to existing technologies, enabling the observation of previously "invisible" magnetic fluctuations in condensed matter [1][2] Group 1: Technology and Methodology - The new sensor is based on engineered diamond defects, specifically ultra-pure diamonds that are significantly purer than natural diamonds, with only one atom missing in a lattice of billions [1] - The team implanted two nitrogen vacancy centers approximately 10 nanometers apart on the diamond surface, allowing them to interact at the quantum level and form entanglement, which significantly improves sensitivity by extracting highly correlated magnetic signals from background noise [1] - The implantation process involves bombarding the diamond with nitrogen molecules at a speed exceeding 30,000 feet per second, allowing for precise control over the depth and spacing of the nitrogen atoms, which is crucial for achieving quantum entanglement [1] Group 2: Applications and Future Prospects - This breakthrough allows researchers to directly observe previously difficult-to-access magnetic noise and electronic behaviors at the atomic scale, including electron propagation and scattering processes, as well as the evolution of magnetic flux vortices in superconducting materials under special conditions [2] - The new quantum sensor is expected to be used in the study of unconventional superconductors and topological quantum states, providing experimental evidence for the design of next-generation quantum materials [2]