Physicists John Clarke, Michel Devoret, and John M. Martinis have won the 2025 Nobel Prize in Physics for demonstrating macroscopic quantum tunnelling in superconducting circuits. Their experiments bridged theory and technology, forming the basis for superconducting qubits and today’s quantum computing and sensing technologies.Physicists John Clarke, Michel Devoret, and John M. Martinis have won the 2025 Nobel Prize in Physics for demonstrating macroscopic quantum tunnelling in superconducting circuits. Their experiments bridged theory and technology, forming the basis for superconducting qubits and today’s quantum computing and sensing technologies.