Control over the transverse structure and long-distance fiber propagation of light at the single-photon level.

ABSTRACT: Quantum entanglement is arguably the cornerstone which differentiates the quantum realm from its classical counterpart. While entanglement can reside in any photonic degree of freedom, polarization permits perhaps the most straightforward manipulation due to the widespread availability of standard optical elements such as waveplates and polarizers. As a step towards a fuller exploitation of entanglement in other degrees of freedom, in this work we demonstrate control over the transverse spatial structure of light at the single-photon level. In particular we integrate in our setup all the technologies required for: (i) fibre-based photon pair generation, (ii) deterministic and broadband single-photon spatial conversion relying on a passive optical device, and (iii) single-photon transmissio

SUBMITTER: Cruz-Delgado D 

PROVIDER: S-EPMC6588692 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature