Harnessing graphene-hBN hyperstructure for single-photon sources

Single Photon Sources

Asymmetric architecture for heralded single-photon sources

Luca Mazzarella,1,* Francesco Ticozzi,1,2 Alexander V. Sergienko,3 Giuseppe Vallone,1 and Paolo Villoresi1 1Dipartimento di Ingegneria dell’Informazione, Università di Padova, via Gradenigo 6/B, I-35131 Padova, Italy 2Department of Physics and Astronomy, Dartmouth College, 6127 Wilder Laboratory, Hanover, New Hampshire 03755, USA 3Department of Electrical and Computer Engineering, Boston Univer...

Nanoantennas for ultrabright single photon sources.

We propose to use nanoantennas (NAs) coupled to incoherently pumped quantum dots for ultrabright single photon emission. Besides fully quantum calculations, we analyze an analytical expression for the emitted photon rate. From these analytical considerations, it turns out that the Purcell factor and the pumping rate are the main quantities of interest. We also disclose a trade-off between the e...

Heralded single photon sources for QKD applications

Single photon sources (SPS) are a fundamental building block for optical implementations of quantum information protocols. Among SPSs, multiple crystal heralded single photon sources seem to give the best compromise between high pair production rate and low multiple photon events. In this work, we study their performance in a practical quantum key distribution experiment, by evaluating the achi...

Single and Entangled Photon Sources

This paper explores the fundamentals and applications of single and entangled photon sources. These sources are the ground works for advances in quantum communications, ranging from quantum cryptography to topics as peculiar as quantum teleportation. Single Photon Sources I. What is a Single Photon Source? A single photon source is an emitter of light that has all of its photons separated in ti...