arXiv subjects

O. Landry

Publications and source records attributed to O. Landry.

2 recordsLinked to original sources

arXiv2010

Simple synchronization of independent picosecond photon sources for quantum communication experiments

An essential requirement for the future of quantum communication is the capability to create undistinguishable photons at distant locations. The main challenge is to control the various sources of timing jitter in order to conserve temporal undistinguishability. We report on a system that enables a large tolerance against such jitter by using synchronized sources of photons with coherence lengths on the order of centimeters.

quant-ph↗

arXiv2010

Purification of Single-photon Entanglement

Single-photon entanglement is a simple form of entanglement that exists between two spatial modes sharing a single photon. Despite its elementary form, it provides a resource as useful as polarization-entangled photons and it can be used for quantum teleportation and entanglement swapping operations. Here, we report the first experiment where single-photon entanglement is purified with a simple linear-optics based protocol. Besides its conceptual interest, this result might find applications in long distance quantum communication based on quantum repeaters.

quant-ph↗