Two-photon interference of polarization-entangled photons in a Franson interferometer

Abstract We present two-photon interference experiments with polarization-entangled photon pairs in a polarization-based Franson-type interferometer. Although the two photons do not meet at a common beamsplitter, a phase-insensitive Hong-Ou-Mandel type two-photon interference peak and dip fringes ar...

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Autores principales:	Heonoh Kim, Sang Min Lee, Osung Kwon, Han Seb Moon
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/89beb8b661ef4ff8a8046338ab5000ab
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spelling	oai:doaj.org-article:89beb8b661ef4ff8a8046338ab5000ab2021-12-02T12:31:48ZTwo-photon interference of polarization-entangled photons in a Franson interferometer10.1038/s41598-017-06196-x2045-2322https://doaj.org/article/89beb8b661ef4ff8a8046338ab5000ab2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06196-xhttps://doaj.org/toc/2045-2322Abstract We present two-photon interference experiments with polarization-entangled photon pairs in a polarization-based Franson-type interferometer. Although the two photons do not meet at a common beamsplitter, a phase-insensitive Hong-Ou-Mandel type two-photon interference peak and dip fringes are observed, resulting from the two-photon interference effect between two indistinguishable two-photon probability amplitudes leading to a coincidence detection. A spatial quantum beating fringe is also measured for nondegenerate photon pairs in the same interferometer, although the two-photon states have no frequency entanglement. When unentangled polarization-correlated photons are used as an input state, the polarization entanglement is successfully recovered through the interferometer via delayed compensation.Heonoh KimSang Min LeeOsung KwonHan Seb MoonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Heonoh Kim Sang Min Lee Osung Kwon Han Seb Moon Two-photon interference of polarization-entangled photons in a Franson interferometer
description	Abstract We present two-photon interference experiments with polarization-entangled photon pairs in a polarization-based Franson-type interferometer. Although the two photons do not meet at a common beamsplitter, a phase-insensitive Hong-Ou-Mandel type two-photon interference peak and dip fringes are observed, resulting from the two-photon interference effect between two indistinguishable two-photon probability amplitudes leading to a coincidence detection. A spatial quantum beating fringe is also measured for nondegenerate photon pairs in the same interferometer, although the two-photon states have no frequency entanglement. When unentangled polarization-correlated photons are used as an input state, the polarization entanglement is successfully recovered through the interferometer via delayed compensation.
format	article
author	Heonoh Kim Sang Min Lee Osung Kwon Han Seb Moon
author_facet	Heonoh Kim Sang Min Lee Osung Kwon Han Seb Moon
author_sort	Heonoh Kim
title	Two-photon interference of polarization-entangled photons in a Franson interferometer
title_short	Two-photon interference of polarization-entangled photons in a Franson interferometer
title_full	Two-photon interference of polarization-entangled photons in a Franson interferometer
title_fullStr	Two-photon interference of polarization-entangled photons in a Franson interferometer
title_full_unstemmed	Two-photon interference of polarization-entangled photons in a Franson interferometer
title_sort	two-photon interference of polarization-entangled photons in a franson interferometer
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/89beb8b661ef4ff8a8046338ab5000ab
work_keys_str_mv	AT heonohkim twophotoninterferenceofpolarizationentangledphotonsinafransoninterferometer AT sangminlee twophotoninterferenceofpolarizationentangledphotonsinafransoninterferometer AT osungkwon twophotoninterferenceofpolarizationentangledphotonsinafransoninterferometer AT hansebmoon twophotoninterferenceofpolarizationentangledphotonsinafransoninterferometer
_version_	1718394290500009984

Two-photon interference of polarization-entangled photons in a Franson interferometer

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