HAL : hal-00704127, version 2

arXiv : 1206.0824

DOI : 10.1140/epjd/e2012-30351-6

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European Physical Journal D 66, 10 (2012) 249

Versions disponibles :

v1 (05-06-2012)

v2 (17-07-2012)

Effect of the heralding detector properties on the conditional generation of single-photon states

Virginia D'Auria 1, Olivier Morin 2, Claude Fabre 2, Julien Laurat 2

(04/10/2012)

Single-photons play an important role in emerging quantum technologies and information processing. An efficient generation technique consists in preparing such states via a conditional measurement on photon-number correlated beams: the detection of a single-photon on one of the beam can herald the generation of a single-photon state on the other one. Such scheme strongly depends on the heralding detector properties, such as its quantum efficiency, noise or photon-number resolution ability. These parameters affect the preparation rate and the fidelity of the generated state. After reviewing the theoretical description of optical detectors and conditional measurements, and how both are here connected, we evaluate the effects of these properties and compare two kind of devices, a conventional on/off detector and a two-channel detector with photon-number resolution ability.

1 :	Laboratoire de physique de la matière condensée (LPMC)
	CNRS : UMR6622 – Université Nice Sophia Antipolis [UNS]
2 :	Laboratoire Kastler Brossel (LKB (Jussieu))
	CNRS : UMR8552 – Université Pierre et Marie Curie [UPMC] - Paris VI – Ecole normale supérieure de Paris - ENS Paris

Domaine

:

Physique/Physique Quantique

hal-00704127, version 2

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Contributeur : Julien LAURAT <>

Soumis le : Mardi 17 Juillet 2012, 21:02:58

Dernière modification le : Lundi 8 Octobre 2012, 10:20:53