Hyperfine and optical barium ion qubits
/ Authors
/ Abstract
State preparation, qubit rotation, and high fidelity readout are demonstrated for two different {sup 137}Ba{sup +} qubit types. First, an optical qubit on the narrow 6S{sub 1/2} to 5D{sub 5/2} transition at 1.76 {mu}m is implemented. Then, leveraging the techniques developed there for readout, a ground-state hyperfine qubit using the magnetically insensitive transition at 8 GHz is accomplished.
Journal: Physical Review A