These are great times for quantum physics, with burgeoning applications of “quantum 2.0” technology. In this special issue, Mauro Paternostro provides a bird’s eye view of the quantum-technology landscape. James McKenzie looks at where, how much and in what areas private companies are investing, while Farai Mazhandu and Mhlambululi Mafu point out how Africa is set to take advantage of the “second quantum revolution”. Don’t miss either Philip Ball’s feature on “quantum plumbers”, explore the strange “Wigner’s friend” thought experiment, and do try our fun quantum cryptic word search.
Expand to full screen, bookmark pages or download to read offline using the icons beneath the screen. You can access the videos and audio clips if you read the e-magazine online. Read it now
Get more from Physics World without waiting for the next issue. The same great journalism, but delivered to you daily. Read updates on the latest research as soon as they happen and access 20 years of online content, organized across 13 dedicated scientific areas. Visit the homepage to start exploring.