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Proceedings Paper

Two-photon four-qubit linear cluster states
Author(s): G. Vallone; E. Pomarico; F. De Martini; P. Mataloni
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Paper Abstract

High fidelity, high count rate four qubit linear cluster states have been realized by using two photons that are entangled both in polarization and linear momentum. Their properties have been investigated by evaluating the entanglement witness and carrying out a "stronger two observer all versus nothing" test of quantum nonlocality. The experimental results concerning the realization of single qubit rotations demonstrates the feasibility of one-way quantum computation by using these states.

Paper Details

Date Published: 19 July 2007
PDF: 7 pages
Proc. SPIE 6726, ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information, 672629 (19 July 2007); doi: 10.1117/12.751457
Show Author Affiliations
G. Vallone, Univ. La Sapienza (Italy)
Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (Italy)
E. Pomarico, Univ. La Sapienza (Italy)
Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (Italy)
F. De Martini, Univ. La Sapienza (Italy)
Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (Italy)
P. Mataloni, Univ. La Sapienza (Italy)
Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia (Italy)


Published in SPIE Proceedings Vol. 6726:
ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information

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