The International Year of Quantum Science and Technology (IYQ) has officially closed following a two-day event in Accra, Ghana. The year has seen hundreds of events worldwide celebrating the science and applications of quantum physics.

Officially launched in February at the headquarters of the UN Educational, Scientific and Cultural Organization (UNESCO) in Paris, IYQ has involved hundreds of organizations – including the Institute of Physics, which publishes Physics World .

The year 2025 was chosen for an international year dedicated to quantum physics as it marks the centenary of the initial development of quantum mechanics by Werner Heisenberg. A range of international and national events have been held touching on quantum in everything from communications and computing to medicine and the arts.

One of the highlights of the year was a workshop on 9–14 June 2025 in Helgoland – the island off the coast of Germany where Heisenberg made his breakthrough exactly 100 years earlier.…