Quantum information technologies build on the study of quantum physics to collect, generate, and process information in ways not achievable with existing technologies.1 One such technology, a quantum computer, could address some problems that are intractable on any possible classical computers, including the most powerful supercomputers.2 Future quantum computing could break cryptographic schemes by factoring the large numbers used in encryption, as well as simulate chemical reactions that ...Read more >

Quantum computing, a topic unknown to most of the population a decade ago, has burst into the public’s imagination over the past few years. Part of this interest can be attributed to concerns about the slowing of technology scaling, also known as Moore’s law, which has driven computing performance for over half a century, increasing interest in alternative computing technology. But most of the excitement comes from the unique computational ...Read more >

This ASPI report, which was commissioned by the Department of Defence and is based on publicly available research, examines the impact of quantum technologies on secure communications. It provides an overview of the key technologies and the status of the field in Australia and internationally (including escalating recent developments in both the US and China), and captures counterpart US, UK and Canadian reports and recommendations to those nations’ defence departments that have recently ...Read more >

This chapter aims to introduce some of the applications of the ideas of quantum mechanics that were developed during the last twenty years or so of the twentieth century. The topics chosen reflect our increased understanding of a number of areas and its application to new phenomena that have been predicted and sometimes observed. They all rely on the interplay between the two types of time dependence implicit in the fundamental ...Read more >

The physical theory of quantum mechanics has been studied for more than a century, but in recent years, many new potential applications have been proposed and have entered or approached practical development. Although some of these applications are much closer to readiness than others are, many of them could be important in both the commercial and the national security ...Read more >

Although the fourth generation of modern warfare is characterised by decentralisation and the states’ loss of the monopoly on war [1, 2], it is also characteristic that armies of advanced countries have access to state-of-the-art military technologies. This includes the appearance of quantum technologies on the horizon.The term quantum technology (QT) means the technology mostly coming from the so-called second quantum revolution. Before, the first quantum revolution brought technologies ...Read more >

China is positioning itself as a powerhouse in quantum science. Within the past several years, Chinese researchers have achieved a track record of consistent advances in basic research and in the development of quantum technologies, including quantum cryptography, communications, and computing, as well as reports of progress in quantum radar, sensing, imaging, metrology, and navigation. Their breakthroughs demonstrate the successes of a long-term research agenda that has dedicated ...Read more >

Quantum information science (QIS) combines elements of mathematics, computer science, engineering, and physical sciences, and has the potential to provide capabilities far beyond what is possible with the most advanced technologies available today. Although much of the press coverage of QIS has been devoted to quantum computing, there is more to QIS. Many experts divide QIS technologies into three application areas:  Sensing and metrology,  Communications, and  Computing and ...Read more >