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Nobel Prize in Physics 2025 Honors Clarke, Devoret and Martinis for Macroscopic Quantum Tunnelling

The award recognizes 1980s superconducting-circuit experiments that revealed quantum effects at a hand-held scale and underpin today’s quantum technologies.

Premio Nobel de Física 2025
Photos of John Clarke, Michel H Devoret and John M. Martinis are pictured on a screen after they were announced as winners of the Nobel Prize in Physics, at the Nobel Assembly of the Karolinska Institutet, in Stockholm, Sweden, Tuesday, Oct. 7, 2025. (Christine Olsson/TT News Agency via AP)
Los ganadores.
Con este galardón se reconocen los experimentos que demostraron cómo se puede observar el efecto túnel cuántico a escala macroscópica

Overview

  • On Tuesday, the Royal Swedish Academy of Sciences named John Clarke, Michel H. Devoret and John M. Martinis as the 2025 Nobel physics laureates.
  • The citation credits their discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.
  • Their mid-1980s Josephson-junction experiments demonstrated quantum behavior in superconducting circuits, laying foundations for qubits as well as quantum computing, cryptography and sensors.
  • Clarke of UC Berkeley, Devoret of Yale and Martinis of UC Santa Barbara reacted to the news, with Clarke describing the call as a complete surprise.
  • The trio will share 11 million Swedish kronor at the December 10 ceremony, the second Nobel announcement of the week following Monday’s Medicine prize.