Generating mixtures of spatial qubits

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In a recent letter [Phys. Rev. Lett. 94, 100501 (2005)], we presented a scheme for generating pure entangled states of spatial qudits ($D$-dimensional quantum systems) by using the momentum transverse correlation of the parametric down-converted photons. In this work we discuss a generalization of this process to enable the creation of mixed states. With the technique proposed we experimentally generated a mixture of two spatial qubits.
To appear in Optics Communications

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/167007

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0808.1885
 http://arxiv.org/abs/0808.1885
 doi:10.1016/j.optcom.2008.06.050

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arXiv