One-way quantum computation with two-photon multiqubit cluster states

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dc.creatorVallone, Giuseppe
dc.creatorPomarico, Enrico
dc.creatorDe Martini, Francesco
dc.creatorMataloni, Paolo
dc.date2008-07-24
dc.date.accessioned2026-07-07T10:15:16Z
dc.date.available2026-07-07T10:15:16Z
dc.descriptionWe describe in detail the application of four qubit cluster states, built on the simultaneous entanglement of two photons in the degrees of freedom of polarization and linear momentum, for the realization of a complete set of basic one-way quantum computation operations. These consist of arbitrary single qubit rotations, either probabilistic or deterministic, and simple two qubit gates, such as a c-not gate for equatorial qubits and a universal c-phase (CZ) gate acting on arbitrary target qubits. Other basic computation operations, such as the Grover's search and the Deutsch's algorithms, have been realized by using these states. In all the cases we obtained a high value of the operation fidelities. These results demonstrate that cluster states of two photons entangled in many degrees of freedom are good candidates for the realization of more complex quantum computation operations based on a larger number of qubits.
dc.description13 pages, 13 figures, 6 tables
dc.identifierhttps://arxiv.org/abs/0807.3887
dc.identifierhttp://arxiv.org/abs/0807.3887
dc.identifierPhys. Rev. A 78, 042335 (2008)
dc.identifierdoi:10.1103/PhysRevA.78.042335
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173121
dc.subjectQuantum Physics
dc.titleOne-way quantum computation with two-photon multiqubit cluster states
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