High-performance source of indistinguishable polarization-entangled photons with a local oscillator reference for quantum networking

Fuente: arXiv
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Autores principales: Grayson, Michael, Meyer, Shawn, Sorensen, Daniel, Gookin, Abigail, Allgaier, Markus, Nardelli, Nicholas V., Fortier, Tara M., Reddy, Dileep V., Stevens, Martin J., Mazurek, Michael D., Gopinath, Juliet T., Shalm, L. Krister
Formato: Preprint
Publicado: 2026
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author Grayson, Michael
Meyer, Shawn
Sorensen, Daniel
Gookin, Abigail
Allgaier, Markus
Nardelli, Nicholas V.
Fortier, Tara M.
Reddy, Dileep V.
Stevens, Martin J.
Mazurek, Michael D.
Gopinath, Juliet T.
Shalm, L. Krister
author_facet Grayson, Michael
Meyer, Shawn
Sorensen, Daniel
Gookin, Abigail
Allgaier, Markus
Nardelli, Nicholas V.
Fortier, Tara M.
Reddy, Dileep V.
Stevens, Martin J.
Mazurek, Michael D.
Gopinath, Juliet T.
Shalm, L. Krister
contents Optical quantum networking protocols impose stringent requirements on the states produced by sources of entanglement. We demonstrate a free-space, compact, source of indistinguishable pairs of polarization entangled photons, with an integrated local oscillator reference as a significant step towards this goal. This source achieves $(99.11 \pm 0.01) \%$ polarization entanglement visibility, $(96.3 \pm 0.6) \%$ successive-photon Hong-Ou-Mandel interference visibility, $(68.0 \pm 0.1$) \% heralded efficiency as detected, and $(88.6 \pm 0.2) \%$ interference visibility with a local oscillator. This simultaneous achievement of state-of-the-art metrics demonstrates an adaptable platform for quantum networking.
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id arxiv_https___arxiv_org_abs_2602_10317
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle High-performance source of indistinguishable polarization-entangled photons with a local oscillator reference for quantum networking
Grayson, Michael
Meyer, Shawn
Sorensen, Daniel
Gookin, Abigail
Allgaier, Markus
Nardelli, Nicholas V.
Fortier, Tara M.
Reddy, Dileep V.
Stevens, Martin J.
Mazurek, Michael D.
Gopinath, Juliet T.
Shalm, L. Krister
Quantum Physics
Optics
Optical quantum networking protocols impose stringent requirements on the states produced by sources of entanglement. We demonstrate a free-space, compact, source of indistinguishable pairs of polarization entangled photons, with an integrated local oscillator reference as a significant step towards this goal. This source achieves $(99.11 \pm 0.01) \%$ polarization entanglement visibility, $(96.3 \pm 0.6) \%$ successive-photon Hong-Ou-Mandel interference visibility, $(68.0 \pm 0.1$) \% heralded efficiency as detected, and $(88.6 \pm 0.2) \%$ interference visibility with a local oscillator. This simultaneous achievement of state-of-the-art metrics demonstrates an adaptable platform for quantum networking.
title High-performance source of indistinguishable polarization-entangled photons with a local oscillator reference for quantum networking
topic Quantum Physics
Optics
url https://arxiv.org/abs/2602.10317