Active one-way quantum computation with two-photon four-qubit cluster states.
By using 2-photon 4-qubit cluster states we demonstrate deterministic one-way quantum computation in a single qubit rotation algorithm. In this operation feed-forward measurements are automatically implemented by properly choosing the measurement basis of the qubits, while Pauli error corrections are realized by using two fast driven Pockels cells. We realized also a C-NOT gate for equatorial qubits and a C-PHASE gate for a generic target qubit. Our results demonstrate that 2-photon cluster states can be used for rapid and efficient deterministic one-way quantum computing.
Dipartimento di Fisica, Sapienza Università di Roma and Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Roma, 00185 Italy.
Giuseppe
G
Vallone
Enrico
E
Pomarico
Francesco
F
De Martini
Paolo
P
Mataloni