Applied Physics Letters 108, 53108 (2016)
Phys. Rev. Lett. 111, 120502 (2013)
Phys. Rev. Lett. 115, 93602 (2015)
10.1103/PhysRevLett.115.093602
Nature Communications 5, (2014)
Rare-earth-doped crystals are excellent hardware for quantum storage of optical information. Additional functionality of these materials is added by their waveguiding properties allowing for on-chip photonic networks. However, detection and coherent properties of rare-earth single-spin qubits have not been demonstrated so far. Here, we present experimental results on high-fidelity optical initialization, effcient coherent manipulation, and optical readout of a single electron spin of Ce$^{3+}$ ion in a YAG crystal.