Minimal state tomography of spatial qubits using a spatial light modulator | Zendy

W. M. Pimenta | Zendy; Breno Marques | Zendy; Marcio Carvalho | Zendy; Mariana R. Barros | Zendy; J. G. Fonseca | Zendy; J. Ferraz | Zendy; Marcelo Terra Cunha | Zendy; S. Pádua | Zendy

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Minimal state tomography of spatial qubits using a spatial light modulator

Author(s) -

W. M. Pimenta,

Breno Marques,

Marcio Carvalho,

Mariana R. Barros,

J. G. 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.

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