Document Type

Article

Publication Date

10-24-2012

Abstract

We implement a double-pixel compressive-sensing camera to efficiently characterize, at high resolution, the spatially entangled fields that are produced by spontaneous parametric down-conversion. This technique leverages sparsity in spatial correlations between entangled photons to improve acquisition times over raster scanning by a scaling factor up to n2/log(n) for n-dimensional images. We image at resolutions up to 1024 dimensions per detector and demonstrate a channel capacity of 8.4 bits per photon. By comparing the entangled photons’ classical mutual information in conjugate bases, we violate an entropic Einstein-Podolsky-Rosen separability criterion for all measured resolutions. More broadly, our result indicates that compressive sensing can be especially effective for higher-order measurements on correlated systems.

Comments

This article was originally published in Physical Review X, volume 3, issue 1, in 2012. https://doi.org/10.1103/PhysRevX.3.011013

Peer Reviewed

1

Copyright

American Physical Society

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

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