Demonstration of active feedforward one-way quantum computing with photon-matter hyperentanglement
Demonstration of active feedforward one-way quantum computing with photon-matter hyperentanglement
We report an optical one-way quantum computing experiment with stationary quantum memory involved. First we create a hybrid four-qubit cluster state with two qubits propagating as photons and the other two stationary and stored in a laser-cooled atomic-ensemble quantum memory, and characterize it with entanglement witnesses and quantum state tomography. …