Quantum computation with two-photon six-qubit cluster states
speaker: Paolo Mataloni (Dipartimento di Fisica, Sapienza Università di Roma)abstract: A six-qubit linear cluster state has been created by transforming a two-photon hyper-entangled state in which three qubits are encoded in each particle, one in the polarization and two in the linear momentum degrees of freedom. We have completely characterized this state, demonstrating genuine six-qubit entanglement, persistency of entanglement against the loss of qubits, and higher violation than in previous experiments on Bell inequalities of the Mermin type. The two-photon six-qubit cluster state has been adopted in the framework of the one-way quantum computation model to perform and test the correct functioning of a CNOT gate (allowing for different input states). Other quantum computation applications of this state will be discussed.
timetable:
Fri 6 Nov, 9:00 - 9:30, Aula Dini
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