778 citations
4 papers
A note on quantum error correction with continuous variables
Peter van Loock
We demonstrate that continuous-variable quantum error correction based on Gaussian ancilla states and Gaussian operations (for encoding, syndrome extraction, and recovery) can be v…
Broadband frequency mode entanglement in waveguided PDC
Andreas Eckstein, Christine Silberhorn
We report the observation of beatings of the coincidence event rate in a Hong-Ou-Mandel interference (HOMI) between signal and idler photons from a parametric downconversion (PDC)…
Recent developments in quantum key distribution: theory and practice
Wolfgang Mauerer, Wolfram Helwig, Christine Silberhorn
Quantum key distribution is among the foremost applications of quantum mechanics, both in terms of fundamental physics and as a technology on the brink of commercial deployment. St…
Continuous variable quantum key distribution using polarization encoding and post selection
Stefan Lorenz, Natalia Korolkova, Gerd Leuchs
We present an experimental demonstration of a quantum key distribution protocol using coherent polarization states. Post selection is used to ensure a low error rate and security a…