US Edition2 U.C. Santa Barbara Professors Receive 2025 Nobel Prize in Physics
The 2025 Nobel Prize recognizes groundbreaking experiments proving quantum tunnelling and energy quantisation in superconducting circuits from the 1980s.
- On October 7, 2025, the Royal Swedish Academy of Sciences awarded the Nobel Prize in Physics to John Clarke, Michel H. Devoret and John M. Martinis for discovering macroscopic quantum tunnelling and energy quantisation.
- In experiments over 40 years ago, the laureates used a Josephson junction in a superconducting circuit to reveal quantum behaviour of a macroscopic phase variable.
- At sufficiently low temperatures, researchers found that below 273 degrees Celsius the phase variable difference across the Josephson junction demonstrated energy level quantisation and quantum tunnelling.
- This year's prize emphasises opportunities to advance quantum cryptography, quantum computers and quantum sensors, sparking cheers at Berkeley, UC Santa Barbara and Yale.
- Coinciding with the 100th anniversary of the birth of quantum mechanics, the award highlights applications in precision measurement, laser technology, medical imaging and semiconductor devices including computer chips.
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2 U.C. Santa Barbara professors receive 2025 Nobel Prize in Physics
Three physicists, including a pair of University of California, Santa Barbara professors, have been awarded the 2025 Nobel Prize in Physics for essentially bridging the gap between the invisible quantum world and the world we can see and touch. UCSB professors John M. Martinis and Michel H. Devoret, along with John Clarke of U.C. Berkeley, were honored for experiments that revealed quantum behavior in a system big enough to hold in your hand. Th…
The Conversation
Voice of AlexandriaFrom artificial atoms to quantum information machines: Inside the 2025 Nobel Prize in physics
This illustration shows, from left to right: John Clarke, Michel Devoret and John Martinis. Niklas Elmehed © Nobel Prize Outreach, CC BY-NCThe 2025 Nobel Prize in physics honors three quantum physicists – John Clarke, Michel H. Devoret and John M. Martinis – for their study of quantum mechanics in a macroscopic electrical circuit. Since the prize announcement, cheers and excitement have surrounded the home institutions of these laureates in Berk…
California Is a Nobel Powerhouse
You can keep your Oscars, Emmys, Grammys, and Tonys. Take your Pulitzers, Bookers, and Peabodys, too. Even the Pritzker and the Fields Medal don’t quite measure up. For me, nothing competes with the Nobel Prize as a symbol that someone has truly changed the world. I’m not a scientist, but my mind lives in that space. Science, more than anything else, runs the world and reshapes it. This newsletter was born out of my fascination with how things w…
Nobel Prizes in physics, chemistry awarded to UC Berkeley professors
Two UC Berkeley professors have won 2025 Nobel Prizes this week. John Clarke was awarded the 2025 Nobel Prize in Physics on Oct. 7, and Omar Yaghi was awarded the 2025 Nobel Prize in Chemistry on Oct. 8.
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