Experimental Fock-state bunching capability of non-ideal single-photon states

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73607243" target="_blank" >RIV/61989592:15310/21:73607243 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.osapublishing.org/optica/fulltext.cfm?uri=optica-8-5-743&id=451164" target="_blank" >https://www.osapublishing.org/optica/fulltext.cfm?uri=optica-8-5-743&id=451164</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1364/OPTICA.419230" target="_blank" >10.1364/OPTICA.419230</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Fock-state bunching capability of non-ideal single-photon states

Popis výsledku v původním jazyce

Advanced quantum technologies, as well as fundamental tests of quantum physics, crucially require the interference of multiple single photons in linear-optics circuits. This interference can result in the bunching of photons into higher Fock states, leading to a complex bosonic behavior. These challenging tasks timely require to develop collective criteria to benchmark many independent initial resources. Here we determine whether n independent imperfect single photons can ultimately bunch into the Fock state vertical bar n &gt;. We thereby introduce an experimental Fock-state bunching capability for single-photon sources, which uses phase-space interference for extreme bunching events as a quantifier. In contrast to autocorrelation functions, this operational approach takes into account not only residual multi-photon components but also a vacuum admixture and the dispersion of individual photon statistics. We apply this approach to high-purity single photons generated from an optical parametric oscillator and show that they can lead to a Fock-state capability of at least 14. Our work demonstrates a novel collective benchmark for single-photon sources and their use in subsequent stringent applications.

Název v anglickém jazyce

Experimental Fock-state bunching capability of non-ideal single-photon states

Popis výsledku anglicky

Advanced quantum technologies, as well as fundamental tests of quantum physics, crucially require the interference of multiple single photons in linear-optics circuits. This interference can result in the bunching of photons into higher Fock states, leading to a complex bosonic behavior. These challenging tasks timely require to develop collective criteria to benchmark many independent initial resources. Here we determine whether n independent imperfect single photons can ultimately bunch into the Fock state vertical bar n &gt;. We thereby introduce an experimental Fock-state bunching capability for single-photon sources, which uses phase-space interference for extreme bunching events as a quantifier. In contrast to autocorrelation functions, this operational approach takes into account not only residual multi-photon components but also a vacuum admixture and the dispersion of individual photon statistics. We apply this approach to high-purity single photons generated from an optical parametric oscillator and show that they can lead to a Fock-state capability of at least 14. Our work demonstrates a novel collective benchmark for single-photon sources and their use in subsequent stringent applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Optica

ISSN

2334-2536

e-ISSN

—

Svazek periodika

8

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

743-748

Kód UT WoS článku

000654252200022

EID výsledku v databázi Scopus

2-s2.0-85106970870