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Clarke, Devoret and Martinis Win 2025 Physics Nobel for Quantum Tunnelling in Circuits

Mid‑1980s superconducting‑circuit experiments revealed macroscopic quantum behavior, paving the way for quantum computers, cryptography, sensors.

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The trio were won the Nobel for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.
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FILE - A Nobel Prize medal is displayed before a ceremony at the Swedish Ambassador's Residence in London, Monday, Dec. 6, 2021. (AP Photo/Matt Dunham, File)

Overview

  • The Royal Swedish Academy of Sciences cited the discovery of macroscopic quantum tunnelling and energy quantization in an electric circuit.
  • The committee said the work shows quantum effects in a system “big enough to be held in the hand,” linking abstract theory to practical devices.
  • Clarke is affiliated with UC Berkeley, Devoret with Yale and UC Santa Barbara, and Martinis with UC Santa Barbara, with all three based in the United States.
  • Officials highlighted opportunities for next‑generation quantum technology, including quantum computing, quantum cryptography, and quantum sensors.
  • The laureates will share 11 million Swedish kronor and receive their medals in Stockholm on December 10, with Clarke calling the honor “the surprise of my life.”