English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The Hong-Ou-Mandel (HOM) interference is one of the most intriguing quantumoptical phenomena and crucial in performing quantum optical communication andcomputation tasks. Lately, twin beam emitters such as those relying on theprocess of parametric down-conversion (PDC) have become confident sources ofheralded single photons. However, if the pump power is high enough, the pairsproduced via PDC -- often called signal and idler -- incorporate multiphotoncontributions that usually distort the investigated quantum features. Here, wederive the temporal characteristics of the HOM interference between heraldedstates from two independent narrowband PDC sources. Apart from the PDCmultiphoton content, our treatment also takes into account effects arrivingfrom an unbalanced beam splitter ratio and optical losses. We perform asimulation in the telecommunication wavelength range and provide a useful toolfor finding the optimal choice for PDC process parameters. Our results offerinsight in the properties of narrowband PDC sources and turn useful whendriving quantum optical applications with them.

Unfolding the Hong-Ou-Mandel interference between heralded photons from narrowband twin beams