Open AccessMinimal state tomography of spatial qubits using a spatial light modulator
Author(s) -
W. M. Pimenta,
Breno Marques,
M. A. D. Carvalho,
M. R. Barros,
José Simões da Fonseca,
J. Ferraz,
Marcelo Terra Cunha,
S. Pádua
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.024423
Subject(s) - quantum tomography , spatial light modulator , optics , qubit , physics , quantum imaging , photon , quantum optics , spontaneous parametric down conversion , quantum state , photonics , tomography , density matrix , quantum , quantum mechanics , quantum entanglement , quantum error correction
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.