Open AccessWhat Hong-Ou-Mandel interference says on two-photon frequency entanglement
Author(s) -
Marco Barbieri,
Emanuele Roccia,
Luca Mancino,
Marco Sbroscia,
Ilaria Gianani,
Fabio Sciarrino
Publication year - 2017
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/s41598-017-07555-4
Subject(s) - quantum entanglement , limit (mathematics) , physics , photon , pulse (music) , interference (communication) , interferometry , parametric statistics , spontaneous parametric down conversion , quantum mechanics , statistical physics , computer science , quantum , telecommunications , mathematics , statistics , mathematical analysis , channel (broadcasting) , voltage
Not much, in the end. Here we put forward some considerations on how Hong-Ou-Mandel interferometry provides signatures of frequency entanglement in the two-photon state produced by parametric down-conversion. We find that some quantitative information can be inferred in the limit of long-pulse pumping, while the short-pulse limit remains elusive.