Measurement of the Bloch Vector of a Two-Level Atom with the Cavity-QED Microlaser
Moonjoo Lee, Wontaek Seo, Hyun-Gue Hong, Jai-Hyung Lee, Kyungwon An · 2007
We report the measurement of the population and coherence of identically prepared two-level atoms with the cavity-QED microlaser. The atomic superposition state after coherent interaction with a pump field is directly mapped to the intra-cavity photon number and frequency shift of the microlaser. Our scheme is applicable to quantum information as a tool for analyzing a two-level atomic qubit.