Jelezko F, Gaebel T, Popa I, Domhan M, Gruber A, Wrachtrup J
University of Stuttgart, 3. Physical Institute, Stuttgart, Germany.
Phys Rev Lett. 2004 Sep 24;93(13):130501. doi: 10.1103/PhysRevLett.93.130501. Epub 2004 Sep 20.
Rabi nutations of a single nuclear spin in a solid have been observed. The experiments were carried out on a single electron and a single 13C nuclear spin of a single nitrogen-vacancy defect center in diamond. The system was used for implementation of quantum logical NOT and a conditional two-qubit gate (CROT). Density matrix tomography of the CROT gate shows that the gate fidelity achieved in our experiments is up to 0.9, good enough to be used in quantum algorithms.
已观测到固体中单个核自旋的拉比振荡。实验是在金刚石中单个氮空位缺陷中心的单个电子和单个(^{13}C)核自旋上进行的。该系统用于实现量子逻辑非门和条件两比特门（CROT）。CROT门的密度矩阵层析成像表明，我们实验中实现的门保真度高达0.9，足以用于量子算法。
