Influence of pump coherence on the quantum properties of spontaneous parametric down-conversion

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Item Type:	Article
Type of entry:	Secondary publication
Title:	Influence of pump coherence on the quantum properties of spontaneous parametric down-conversion
Language:	English
Date:	22 August 2024
Place of Publication:	Darmstadt
Year of primary publication:	2018
Place of primary publication:	Bristol
Publisher:	IOP Science
Journal or Publication Title:	Physica Scripta
Volume of the journal:	93
Issue Number:	8
Collation:	9 Seiten
DOI:	10.26083/tuprints-00027084
Corresponding Links:	Publisher-DOI Identical work
Origin:	Secondary publication service
Abstract:	The correlation properties of the pump field in spontaneous parametric down-conversion are crucial in determining the degree of entanglement of generated signal and idler photons. We find theoretically that continuous-variable entanglement of the transverse positions and momenta of these photons can be achieved only if the coherence of the pump beam is sufficiently high. The positions of signal and idler photons are found to be correlated, even for an incoherent pump. However, the momenta of the signal and idler photons are not anti-correlated, even though transverse momentum is conserved.
Status:	Postprint
URN:	urn:nbn:de:tuda-tuprints-270846
Classification DDC:	500 Science and mathematics > 530 Physics
Date Deposited:	22 Aug 2024 13:00
Last Modified:	24 Sep 2024 09:42
URI:	https://tuprints.ulb.tu-darmstadt.de/id/eprint/27084
PPN:	521646162
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