Abstract
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 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.
- Received 12 February 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.130501
©2004 American Physical Society