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Radiation-pressure self-cooling of a micromirror in a cryogenic environment
Simon Groeblacher, Sylvain Gigan, Hannes R. Boehm +2
We demonstrate radiation-pressure cavity-cooling of a mechanical mode of a micromirror starting from cryogenic temperatures. To achieve that, a high-finesse Fabry-Perot cavity (F\a…
Optomechanical entanglement between a movable mirror and a cavity field
D. Vitali, S. Gigan, A. Ferreira +6
We show how stationary entanglement between an optical cavity field mode and a macroscopic vibrating mirror can be generated by means of radiation pressure. We also show how the ge…
Self-cooling of a micro-mirror by radiation pressure
S. Gigan, H. R. Boehm, M. Paternostro +7
We demonstrate passive feedback cooling of a mechanical resonator based on radiation pressure forces and assisted by photothermal forces in a high-finesse optical cavity. The reson…
Distributing entanglement and single photons through an intra-city, free-space quantum channel
K. J. Resch, M. Lindenthal, B. Blauensteiner +11
We have distributed entangled photons directly through the atmosphere to a receiver station 7.8 km away over the city of Vienna, Austria at night. Detection of one photon from our…
Practical Quantum Key Distribution with Polarization-Entangled Photons
A. Poppe, A. Fedrizzi, T. Loruenser +9
We present an entangled-state quantum cryptography system that operated for the first time in a real world application scenario. The full key generation protocol was performed in r…