Correcting quantum errors in superconducting circuits

Quantum computers of the future will be built from large numbers of quantum bits (or qubits), which will be in certain quantum states. However, such states are extremely fragile and are easily destroyed by “bit errors” coming from external noise in the environment, and physicists have yet been unable to create qubits robust enough to be used in a practical machine. Researchers at the University of California, Santa Barbara, and Google Inc. say that they have now built a nine-qubit system in a superconducting circuit that is robust to such errors and their experiments show that quantum error correction could now be realistically feasible in a physical quantum device………….

http://nanotechweb.org/cws/article/tech/60428