Overview

• The Royal Swedish Academy named John Clarke, Michel H. Devoret and John M. Martinis as the 2025 laureates for reproducing quantum phenomena in large-scale electrical circuits.
• The three scientists will share the 11 million Swedish kronor prize equally, in line with Nobel rules that cap each award at three recipients.
• Using superconducting circuits built with Josephson junctions, the team observed macroscopic quantum tunneling and discrete energy levels on a chip.
• The experiments showed that circuits containing billions of particles can act as a single quantum system, linking microscopic theory to practical devices.
• Their findings opened the path to qubit prototypes and now underpin quantum computing, precision sensors and advanced cryptography, according to the Nobel committee.