Experimental Realization of a Controlled-NOT Gate with Four-Photon Six-Qubit Cluster States
Experimental Realization of a Controlled-NOT Gate with Four-Photon Six-Qubit Cluster States
We experimentally demonstrate an optical controlled-NOT (CNOT) gate with arbitrary single inputs based on a 4-photon 6-qubit cluster state entangled both in polarization and spatial modes. We first generate the 6-qubit state, and then, by performing single-qubit measurements, the CNOT gate is applied to arbitrary single input qubits. To characterize …