Speaker
Christian Schimpf
(Johannes Kepler University Linz)
Description
Quantum-key distribution (QKD) is one of the most promising strategies for perfectly secure communication.Protocols based on entangled photon pairs are particularly attractive because of enhanced tolerance to losses and simplified generation of perfectly random secure keys. We use semiconductor-based sources of entangled photon pairs to implement QKD. Different from sources explored so far, quantum dots offer the triggered generation of near-unity entangled photon pairs and have the potential of generating photon pairs at GHz rates. We demonstrate continuous key generation for 13 hours between two buildings, connected via a 350 m single mode fiber with a resulting average error rate of 1.91% and a key rate of 135 bits/s
Authors
Prof.
Armando Rastelli
Christian Schimpf
(Johannes Kepler University Linz)
Ms
Barbara Lehner
Ms
Daniel Huber
Dr
Marcus Reindl
Dr
Saimon Covre da Silva
Mr
Michal Vyvlecka
Prof.
Philip Walther
Dr
Santanu Manna
