Overview

• French physicist Michel H. Devoret, Briton John Clarke and American John M. Martinis shared the 2025 physics prize.
• The Royal Swedish Academy recognized their discovery of macroscopic quantum tunneling and the quantization of energy in an electrical circuit.
• Their experiments demonstrated quantum properties in a circuit large enough to hold in the hand, probing the quantum–classical boundary.
• The Nobel committee said the work paved the way for quantum computers, quantum cryptography and quantum sensors.
• Tuesday’s announcement in Stockholm followed Monday’s medicine award and comes a year after physics honored AI pioneers Geoffrey Hinton and John Hopfield.