Journal
PHYSICAL REVIEW LETTERS
Volume 126, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.126.063602
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Funding
- ERC PoC PhoW
- French Agence Nationale pour la Recherche (grant ANR QuDICE)
- IAD-ANR support ASTRID program [ANR-18-ASTR-0024 LIGHT]
- QuantERA ERA-NET Cofund in Quantum Technologies, project HIPHOP
- French RENATECH network
- French National Research Agency (ANR), Investissements dAvenir programme (Labex NanoSaclay) [ANR-10-LABX-0035]
- Marie Sklodowska-Curie Individual Fellowships
- Paris Ile-de-France Rgion in the framework of DIM SIRTEQ
- NSERC (the Natural Sciences and Engineering Research Council)
- AITF (Alberta Innovates Technology Futures)
- SPIE Education Scholarships program
- iXcore Foundation
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The study delves into how unwanted multiphoton components of single-photon sources affect the Hong-Ou-Mandel interference visibility. It is found that the overlap between single photons and noise photons significantly impacts the interference. By applying the approach to quantum dot single-photon sources, the mean wave packet overlap of the single-photon component can be accessed, providing a consistent platform to diagnose limitations in current single-photon sources.
Hong-Ou-Mandel interference is a cornerstone of optical quantum technologies. We explore both theoretically and experimentally how unwanted multiphoton components of single-photon sources affect the interference visibility, and find that the overlap between the single photons and the noise photons significantly impacts the interference. We apply our approach to quantum dot single-photon sources to access the mean wave packet overlap of the single-photon component. This study provides a consistent platform with which to diagnose the limitations of current single-photon sources on the route towards the ideal device.
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