All-Optical Preparation of Coherent Dark States of a Single Rare Earth Ion Spin in a Crystal

作者：Xia Kangwei^*; Kolesov Roman; Wang Ya; Siyushev Petr; Reuter Rolf; Kornher Thomas; Kukharchyk Nadezhda; Wieck Andreas D; Villa Bruno; Yang Sen; Wrachtrup Joerg

来源：Physical Review Letters, 2015, 115(9): 093602.

DOI：10.1103/PhysRevLett.115.093602

All-optical addressing and coherent control of single solid-state based quantum bits is a key tool for fast and precise control of ground-state spin qubits. So far, all-optical addressing of qubits was demonstrated only in a very few systems, such as color centers and quantum dots. Here, we perform high-resolution spectroscopic of native and implanted single rare earth ions in solid, namely, a cerium ion in yttrium aluminum garnet (YAG) crystal. We find narrow and spectrally stable optical transitions between the spin sublevels of the ground and excited optical states. Utilizing these transitions we demonstrate the generation of a coherent dark state in electron spin sublevels of a single Ce3+ ion in YAG by coherent population trapping.

• 出版日期2015-8-24