Researchers make a quantum computing leap with a magnetic twist

Quantum computing could revolutionize our world. For specific and crucial tasks, it promises to be exponentially faster than the zero-or-one binary technology that underlies today's machines, from supercomputers in laboratories to smartphones in our pockets. But developing quantum computers hinges on building a stable network of qubits - or quantum bits - to store information, access it and perform computations. Yet the qubit platforms unveiled to date have a common problem: They tend to be delicate and vulnerable to outside disturbances. Even a stray photon can cause trouble. Developing fault-tolerant qubits - which would be immune to external perturbations - could be the ultimate solution to this challenge. A team led by scientists and engineers at the University of Washington has announced a significant advancement in this quest.