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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 24 — Nov. 22, 2010
  • pp: 24423–24433

Minimal state tomography of spatial qubits using a spatial light modulator

W. M. Pimenta, B. Marques, M. A. D. Carvalho, M. R. Barros, J. G. Fonseca, J. Ferraz, M. Terra Cunha, and S. Pádua  »View Author Affiliations

Optics Express, Vol. 18, Issue 24, pp. 24423-24433 (2010)

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We report minimal quantum state tomography with spatial qubits created by a pair of parametric down converted twin-photons passing through a double-slit. A novel experimental setup is used, which includes a Spatial Light Modulator, as a fundamental tool, to reconstruct the state density matrix. The theory needed to perform a minimal quantum tomography is described. The density matrix is experimentally obtained for the two-qubit photonic states in spatial variables.

© 2010 Optical Society of America

OCIS Codes
(270.5565) Quantum optics : Quantum communications
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

Original Manuscript: September 20, 2010
Revised Manuscript: October 11, 2010
Manuscript Accepted: October 27, 2010
Published: November 8, 2010

W. M. Pimenta, B. Marques, M. A. Carvalho, M. R. Barros, J. G. Fonseca, J. Ferraz, M. Terra Cunha, and S. Pádua, "Minimal state tomography of spatial qubits using a spatial light modulator," Opt. Express 18, 24423-24433 (2010)

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