Fu Yue, Liu Wenquan, Ye Xiangyu, Wang Ya, Zhang Chengjie, Duan Chang-Kui, Rong Xing, Du Jiangfeng
CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China.
CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China.
Phys Rev Lett. 2022 Sep 2;129(10):100501. doi: 10.1103/PhysRevLett.129.100501.
We report an experimental investigation of quantum correlations in a two-qutrit spin system in a single nitrogen-vacancy center in diamond at room temperatures. Quantum entanglement between two qutrits was observed at room temperature, and the existence of nonclassical correlations beyond entanglement in the qutrit case has been revealed. Our work demonstrates the potential of the NV centers as the multiqutrit system to execute quantum information tasks and provides a powerful experimental platform for studying the fundamental physics of high-dimensional quantum systems in the future.
我们报道了在室温下对金刚石中单个氮空位中心的双量子三态自旋系统中的量子关联进行的实验研究。在室温下观测到了两个量子三态之间的量子纠缠，并且揭示了在量子三态情形下存在超越纠缠的非经典关联。我们的工作展示了氮空位中心作为执行量子信息任务的多量子三态系统的潜力，并为未来研究高维量子系统的基础物理提供了一个强大的实验平台。
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