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arXiv · 0808.1885

Generating mixtures of spatial qubits

G. Lima·F. A. Torres-Ruiz·L. Neves·A. Delgado·C. Saavedra·S. Padua
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Abstract

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.

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G. Lima, F. A. Torres-Ruiz, L. Neves, A. Delgado, C. Saavedra, S. Padua. 2008-08-13. Generating mixtures of spatial qubits. https://doi.org/10.1016/j.optcom.2008.06.050

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