Miniaturised quantum entanglement on a cubesat in space
It’s either the title of a next James Bond film or a remarkable piece of physics designed by a group of scientists from Singapore, the UK and Australia. Good news – it’s the latter. This paper in Optica describes the process of throwing a tiny 2.5kg cubesat out of the International Space Station, and then using it to demonstrate quantum entanglement between particles on Earth and in orbit. Remarkable, and – the researchers speculate – possibly the future of encryption via quantum key distribution.