Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 31: Poster: Quantum Optics and Photonics II
Q 31.29: Poster
Dienstag, 24. März 2015, 17:00–19:00, C/Foyer
Integration of a high-speed continuous-variable quantum random number generator — •Imran Khan1,2, Christoph Pacher3, Momtchil Peev3, Bernhard Schrenk3, Christoph Varga3, Philipp Grabenweger3, Bettina Heim1,2, Christoph Marquardt1,2, and Gerd Leuchs1,2 — 1Max Planck Institute for the Science of Light, Guenther-Scharowsky-Str. 1/Bldg. 24, 91058 Erlangen, Germany — 2Institute for Optics, Information and Photonics, University of Erlangen-Nuernberg, Staudtstraße 7/B2, 91058 Erlangen, Germany — 3Optical Quantum Technology, Department of Safety & Security, AIT Austrian Institute of Technology, Donau-City-Straße 1, 1220 Vienna, Austria
Many cryptographic applications, such as quantum key distribution, rely on the output of random number generators (RNGs). The measurement of a pure quantum state can guarantee true random numbers uncorrelated to any other measured series of numbers, as opposed to classical physical or algorithmic RNGs. The quantum mechanical vacuum state is such a pure state. It has been demonstrated that it can be used as a source of random numbers using homodyne detection. In our work, we discuss the photonic and electronic integration of such a continuous-variable-based quantum RNG and the associated challenges to achieve rates in the GHz regime.