Generating mixtures of spatial qubits

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

doi:10.1016/j.optcom.2008.06.050

Generating mixtures of spatial qubits

Quantum Physics 2008-08-14 v1

Authors: 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.

Keywords

quantum optics and quantum information quantum entanglement quantum state space

Cite

@article{arxiv.0808.1885,
  title  = {Generating mixtures of spatial qubits},
  author = {G. Lima and F. A. Torres-Ruiz and L. Neves and A. Delgado and C. Saavedra and S. Padua},
  journal= {arXiv preprint arXiv:0808.1885},
  year   = {2008}
}

Comments

To appear in Optics Communications

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