Selective filtering of multi-photon events from a single-photon emitter
Friedrich Sbresny, Carolin Calcagno, Sang Kyu Kim, Katarina Boos, William Rauhaus, Frederik Bopp, Hubert Riedl, Jonathan J Finley, Eduardo Zubizarreta Casalengua, Kai Müller · 2026
Read Selective filtering of multi-photon events from a single-photon emitter by Friedrich Sbresny, Carolin Calcagno, Sang Kyu Kim, Katarina Boos, William Rauhaus, Frederik Bopp, Hubert Riedl, Jonathan J Finley, Eduardo Zubizarreta Casalengua, Kai Müller (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13476227.txt.
Description
Friedrich Sbresny and co-authors report a 2026 way to clean up light from a single-photon source. Such sources must emit one photon at a time for quantum links and computing, but stray double events add errors. The limit was thought to be set by the source firing again while the drive pulse lasts.
Photons sent out during the pulse have a wider color spread than the source's natural line. A narrow color filter can thus cut most of the stray early photons while keeping the good ones. The filter cut the double-event measure by near tenfold, with no harm to the wanted output.
Catalog record
| CREATOR | Friedrich Sbresny, Carolin Calcagno, Sang Kyu Kim, Katarina Boos, William Rauhaus, Frederik Bopp, Hubert Riedl, Jonathan J Finley, Eduardo Zubizarreta Casalengua, Kai Müller |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 36 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |