STOCKHOLM —

The 2025 Nobel Prize in physics has been awarded to a trio of scientists – a Briton, a Frenchman and an American – for their ground-breaking discoveries in the field of quantum mechanics.

John Clarke, Michel Devoret and John Martinis will share the prize “for the discovery of macroscopic quantum mechanical tunnelling and energy quantization in an electric circuit,” the Nobel Committee announced Tuesday at a ceremony in Stockholm, Sweden.

The committee praised the laureates for demonstrating that the “bizarre properties of the quantum world can be made concrete in a system big enough to be held in the hand.”

Clarke, taking questions at a news conference, said he was “completely stunned” to learn he had won the award.

“We had not realized in any way that this might be the ba

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