Experimental test of the strongly nonclassical character of a noisy squeezed single-photon state

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33140111" target="_blank" >RIV/61989592:15310/12:33140111 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevA.86.043813" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.86.043813</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.86.043813" target="_blank" >10.1103/PhysRevA.86.043813</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental test of the strongly nonclassical character of a noisy squeezed single-photon state

Popis výsledku v původním jazyce

We experimentally verify the quantum non-Gaussian character of a conditionally generated noisy squeezed single-photon state with a positive Wigner function. Employing an optimized witness based on probabilities of squeezed vacuum and squeezed single-photon states, we prove that the state cannot be expressed as a mixture of Gaussian states. In our experiment, the non-Gaussian state is generated by conditional subtraction of a single photon from a squeezed vacuum state. The state is probed with a homodynedetector and the witness is determined by averaging a suitable pattern function over the measured homodyne data. Our experimental results are in good agreement with a theoretical fit obtained from a simple yet realistic model of the experimental setup.

Název v anglickém jazyce

Experimental test of the strongly nonclassical character of a noisy squeezed single-photon state

Popis výsledku anglicky

We experimentally verify the quantum non-Gaussian character of a conditionally generated noisy squeezed single-photon state with a positive Wigner function. Employing an optimized witness based on probabilities of squeezed vacuum and squeezed single-photon states, we prove that the state cannot be expressed as a mixture of Gaussian states. In our experiment, the non-Gaussian state is generated by conditional subtraction of a single photon from a squeezed vacuum state. The state is probed with a homodynedetector and the witness is determined by averaging a suitable pattern function over the measured homodyne data. Our experimental results are in good agreement with a theoretical fit obtained from a simple yet realistic model of the experimental setup.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

<a href="/cs/project/GAP205%2F12%2F0577" target="_blank" >GAP205/12/0577: Spolehlivé vysoce nelineární optické kvantové zpracování informace</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Physical Review A

ISSN

1050-2947

e-ISSN

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Svazek periodika

86

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

"043813-1"-"1-043813-9"

Kód UT WoS článku

000309650800014

EID výsledku v databázi Scopus

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