Entanglement, uncertainty and dispersion: a simple experimental demonstration of non-classical correlations

Lerch, Stefan; Guerreiro, T; Sanguinetti, B; Sekatski, P; Gisin, N; Stefanov, André (2017). Entanglement, uncertainty and dispersion: a simple experimental demonstration of non-classical correlations. Journal of physics B: Atomic, molecular and optical physics, 50(5), 055505. IOP Publishing 10.1088/1361-6455/aa5b19

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We perform an experiment to verify the presence of entanglement in photon pairs. By sending down-converted light through dispersive media with opposite group velocity dispersion coefficients, we overcome the minimum broadening of temporal correlation for classical light. Entanglement is proved via an inequality derived directly from Heisenberg's uncertainty principle. We present a criterion to select a suitable down-conversion source. Moreover, we introduce a new method to analyze the temporal correlations between the entangled photons.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Applied Physics

UniBE Contributor:

Lerch, Stefan and Stefanov, André

Subjects:

600 Technology > 620 Engineering
500 Science > 530 Physics

ISSN:

0953-4075

Publisher:

IOP Publishing

Language:

English

Submitter:

Franziska Stämpfli

Date Deposited:

13 Jun 2018 13:39

Last Modified:

23 Oct 2019 07:43

Publisher DOI:

10.1088/1361-6455/aa5b19

BORIS DOI:

10.7892/boris.114719

URI:

https://boris.unibe.ch/id/eprint/114719

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