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Proceedings Paper

New perspectives in generation and manipulation of hyperentangled states
Author(s): G. Vallone; E. Pomarico; F. De Martini; P. Mataloni
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Paper Abstract

Quantum states of two photons simultaneously entangled in polarization and linear momentum, namely hyper-entangled or cluster states, allow to operate in a larger Hilbert space, since we can associate four qubits to two photons. We describe how these states are generated, characterized and manipulated by linear optics technique. Some recent results verifying that the ratio between the quantum and classical prediction grows with the size of the Hilbert space are also presented in this work. Finally, we show the efficient realization of a C-NOT gate by using two photon cluster states operating in the one-way model of quantum computation.

Paper Details

Date Published: 10 September 2007
PDF: 11 pages
Proc. SPIE 6780, Quantum Communications Realized, 67800F (10 September 2007); doi: 10.1117/12.732435
Show Author Affiliations
G. Vallone, Univ. La Sapienza (Italy)
Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Roma (Italy)
E. Pomarico, Univ. La Sapienza (Italy)
Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Roma (Italy)
F. De Martini, Univ. La Sapienza (Italy)
Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Roma (Italy)
P. Mataloni, Univ. La Sapienza (Italy)
Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Roma (Italy)


Published in SPIE Proceedings Vol. 6780:
Quantum Communications Realized
Yasuhiko Arakawa; Masahide Sasaki; Hideyuki Sotobayashi, Editor(s)

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