Demonstration of quantum anti-Zeno effect with a single trapped ion

Zhang Man-Chao^{1, 2}, Wu Wei^{1, 2}, He Lin-Ze^{1, 2}, Xie Yi^{1, 2}, Wu Chun-Wang^{1, 2, ‡}, Li Quan^{1, 2}, Chen Ping-Xing^{1, 2, §}

(a) Diagram of the Zeeman sublevels used in coherent evolution and measurement. The m_j represents the magnetic quantum number that corresponds to the Zeeman sublevel. The states labeled |1⟩ and |2⟩ correspond to those in Fig. 1, and the spontaneous decay from |2⟩ to |1⟩ is negligible. (b) Control sequence in our experiment.