by Colin Jeffrey @ gizmag.com:
Before the dream of quantum computing is realized, a number of inherent problems must first be solved. One of these is the ability to maintain a stable memory system that overcomes the intrinsic instability of the basic unit of information in quantum computing – the quantum bit or “qubit”. To address this problem, Physicists working at the University of California Berkeley (UC Berkeley) claim to have created breakthrough circuitry that continuously self-checks for inaccuracies to consistently maintain the error-free status of the quantum memory.
First-ever quantum device that detects and corrects its own errors – [Link]