Work

Spatial entanglement engineering by pump shaping

Year: 2021

Type: preprint

Abstract: The ability to engineer the properties of quantum optical states is essential for quantum information processing applications. Here, we demonstrate tunable control of spatial correlations between photon pairs produced by spontaneous parametric down-conversion. By shaping the spatial pump beam profile in a type-I collinear configuration, we tailor the spatial structure of coincidences between photon pairs entangled in high dimensions, without effect on intensity. The results highlight fundamental aspects of spatial coherence and hold potential for the development of quantum technologies based on high-dimensional spatial entanglement.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2103.02320

Authors: Boucher, Pauline, Defienne, Hugo, Gigan, Sylvain

Institutions: Centre National de la Recherche Scientifique, Université Paris Sciences et Lettres, Laboratoire Kastler Brossel, École Normale Supérieure - PSL, Sorbonne Université, Collège de France, University of Glasgow

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, Institut Universitaire de France, Horizon 2020 Framework Programme

Awards: Adaptive Optics for Quantum Communication, G6017304689, G6169661887, G6604153567

OpenAlex ID: W3135090180

Cites: 35

Cited by: 1

Related to: 20