Universal quantum computation using all-optical hybrid encoding
Guo Qia), b) , Cheng Liu-Yonga) , Wang Hong-Fub) , Zhang Shoua), b)† 
Universal quantum computation using all-optical hybrid encoding |
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Guo Qi
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| Schematic diagram of the hybrid-qubit Hadamard transformation. D (± i γ ) represents the displacement operation, and θ stands for the weak cross-Kerr medium. PBS: polarization beam splitter. HWP: half-wave plate oriented at 22.5°. 1 (1') and 2 (2') indicate different spatial modes of the single photon. ODC: optical directional coupler, which is used to combine spatial modes 1 and 2 to one mode. The diagram at the right represents the circuit shown at the left. |
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