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Towards a Practical Repeater


By co-trapping Rubidium 85 and Rubidium 87 in a single magneto-optical
trap(MOT), qubit basis states are encoded as single spin-wave excitations in  each one of the two atomic species co-trapped in the same region of space. An  atomic qubit based on this isotopic mixture and its entanglement with a  frequency-encoded optical qubit will be demonstrated in the first half of the  talk. In the second half of the talk, I will show the ability of dynamic
entanglement connection by using acoustic-optical deflectors(AOD). The AOD can be served as a dynamic beam splitter to make a qubit out of different quantum elements which is crucial for a practical quantum repeater.