U.S. Department of Energy, Office of Science
Quantum in the Palm of Your Hand: The Evolution of Superconducting Qubits
An Office of Science feature tracing superconducting qubits from the 1985 Berkeley demonstration that a macroscopic system can behave quantum-mechanically — work by Clarke, Devoret, and Martinis later recognized with a Nobel Prize — to today's devices, including a Princeton chip whose qubits hold coherence beyond one millisecond, roughly fifteen times the industry standard.
Relation to our work
This is the hardware lineage the federal quantum roadmap bets on. The Department's own account confirms that four decades of basic research produced qubits measured in milliseconds of coherence — genuine progress, and also the timescale on which that approach promises energy-relevant simulation.
Boundary
Nothing in the article addresses spectral statistics, nuclear level distributions, or the Riemann correspondence. It documents the instrument being built; it does not claim the instrument is the only path to the answers. Our work proceeds on the classical path the roadmap leaves open.