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CQT eyes orbit for next experiment

Oi, Daniel and Alex, Ling (2011) CQT eyes orbit for next experiment. In: Centre for Quantum Technologies Annual Report 2011. Centre for Quantum Technologies, pp. 20-21.

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CQT Principal Investigator Alexander Ling and Daniel Oi from the University of Strathclyde, UK, are collaborating to put an optical entanglement experiment into low Earth orbit. In this article, they describe the motivations and challenges. Quantum theory has survived all challenges so far: the pioneering experiments of Alain Aspect demonstrated quantum correlations violating classical predictions, and experiments have tested quantum entanglement – the “spooky action at a distance” that so disturbed Einstein – over ever greater separation. But these experiments have all been Earth-bound. Isn’t it time to test quantum theory in space? Science is driven by unexpected discoveries, discoveries often made at the limits of our understanding or in extreme physical environments. Going into space will stretch our tests of quantum theory, from observing entanglement over even longer distances to exploring relativistic effects.