Over the past six years, quantum science has noticeably shifted, from the domain of physicists concerned with learning about the universe on extremely small scales, to a source of new technologies we all might use for practical purposes. These technologies make use of quantum properties of single atoms or particles of light. They include sensors, communication networks, and computers. Quantum technologies are expected to impact many aspects of our society, including health care, financial services, defence, weather modelling, and cyber security. Clearly, they promise exciting benefits. Yet the history of technology development shows we cannot simply assume new tools and…
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