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Photonic Quantum Computing

Experimental conversion of position correlation into polarization entanglement

arXiv
Authors: Chithrabhanu Perumangatt, Alexander Lohrmann, Alexander Ling

Year

2019

Paper ID

15208

Status

Preprint

Abstract Read

~2 min

Abstract Words

89

Citations

N/A

Abstract

This manuscript presents a method to convert position correlation of photon-pairs into polarization entanglement. This is achieved by individually manipulating the polarization state of photons generated in different parts of a non-linear medium and putting them in coherent superposition. This concept is experimentally demonstrated using photon-pairs produced by spontaneous parametric down conversion (SPDC). The method was used to implement a compact source producing an observed photon-pair rate of 120,000/s/mW with an entanglement fidelity of 0.99. This method can be extended to any photon-pair generation process with initial position correlation.

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  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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  • This manuscript presents a method to convert position correlation of photon-pairs into polarization entanglement.

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