QUROPE Quantum Information Processing and Communication in Europe

Going to space is the natural extension to experiments involving the distribution of quantum states of light. Not only the range of quantum communication can be extended over intercontinental scales, but also entanglement can be tested in conditions inaccessible on the ground. The development of such experiments could greatly benefit from the recent advances in classical photonics technologies for space. Conversely, the latest developments of quantum technologies could improve classical methods. The goal of the conference is to cover a wide range of topics related to the transmission of quantum and classical light in space, to bring together those various communities and to identify overlaps not only from a technological side but also from a theoretical perspective. The conference covers the following topics:

Theory

• Tests of relativity with quantum states of light
• Theoretical investigation of the relation between entanglement and gravity
• Optical quantum metrology for space experiments

Free-space experiments with quantum states of light

• Discrete and continuous variable quantum communication / Quantum key distribution
• Experimental entanglement distribution

Classical photonics technologies in space

• Free space optical communications
• Optical time and frequency transfer
• Satellite laser ranging and laser altimetry
• Optical sensing