Qubits in the quantum sea

"Quantum weirdness," a phrase related to the power and the un-intuitive nature of quantum reality, is expected to facilitate speeded-up computation—quantum computing—for performing certain specialized tasks, such as factoring numbers. One drawback is that quantum computing depends exquisitely on the parts of a quantum system remaining coherent long enough—even in the face of environmental noise—for the computation to be performed. A proposed scheme should be helpful in sustaining coherence by carefully making mid-calculation corrections.