SHAU-YU LANS. D. JenkinsT. ChanelièreD. N. MatsukevichC. J. CampbellR. ZhaoT. A. B. KennedyA. Kuzmich2025-01-162025-01-162007-03-23https://scholars.lib.ntu.edu.tw/handle/123456789/724843We propose and demonstrate an atomic qubit based on a cold Rb85-Rb87 isotopic mixture, entangled with a frequency-encoded optical qubit. The interface of an atomic qubit with a single spatial light mode, and the ability to independently address the two atomic qubit states, should provide the basic interferometrically robust element of a quantum network.journal article10.1103/physrevlett.98.123602