Major step taken toward error-free computing

Stable quantum information could make possible solving problems in record time

ENTANGLED  Tiny electrical circuits have given physicists unprecedented control over the quantum states of units of information called qubits. The qubits appear as five crosses (center).

Erik Lucero/UCSB

Quantum computing has overcome an important barrier: Scientists have achieved nearly perfect control over a bit of quantum information in a way that could bring them a step closer to error-free calculations.