D. A. Ritchie

An entangled-LED-driven quantum relay over 1 km

2016 · npj Quantum Information

Abstract Quantum cryptography allows confidential information to be communicated between two parties, with secrecy guaranteed by the laws of nature alone. However, upholding guaranteed secrecy over networks poses a further challenge, as classical receive-and-resend routing …

Active reset of a radiative cascade for entangled-photon generation beyond the continuous-driving limit

2020 · Physical Review Research

The emission rate of entangled photons from cascaded few-level systems is limited by the dynamics of the radiative transitions. Here, we overcome the continuous driving limit for a semiconductor quantum dot via an active reset …