Loophole-free test of quantum nonlocality using high-efficiency homodyne detectors

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F05%3A00002122" target="_blank" >RIV/61989592:15310/05:00002122 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Loophole-free test of quantum nonlocality using high-efficiency homodyne detectors

Original language description

We provide a detailed analysis of the recently proposed setup for a loophole-free test of Bell inequality violation using conditionally generated non-Gaussian states of light and balanced homodyning. In the proposed scheme, a two-mode squeezed vacuum state is de-Gaussified by subtracting a single photon from each mode with the use of an unbalanced beam splitter and a standard low-efficiency single-photon detector. We thoroughly discuss the tolerance of the achievable Bell violation in the various experimentally relevant parameters such as the detector efficiencies, the electronic noise, the mixedness of the initial Gaussian state, and the probability of false triggers. We also consider several alternative schemes involving squeezed states, linear optical elements, conditional photon subtraction, and homodyne detection.

Czech name

Test kvantové nelokality využívající vysoce účinné homodynní detektory

Czech description

Je provedena detailní analýza nedávno navrženého schématu pro nepodmíněnýtest porušení Bellových nerovností s využitím negaussovských kvantověprovázaných stavů a homodynní detekce. Je důkladně diskutován vliv různýchrelevantních experimentálních parametrů na míru porušení Bellovýchnerovností.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

<a href="/en/project/LN00A015" target="_blank" >LN00A015: Research center for optics</a><br>

Continuities

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

Publication year

2005

Confidentiality

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

Name of the periodical

Physical Review A

ISSN

1050-2947

e-ISSN

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Volume of the periodical

71

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

1

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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