Erasing data could keep quantum computers cool - physicsworld.com

Erasing data could keep quantum computers cool - physicsworld.com: "Erasure of data – the blanking of memory so that it can be used again – is a fundamental operation any computer must perform. In today's computers, erasure generates heat, which not only wastes energy, but also causes problems for engineers trying to make smaller or more powerful computers, since the heat could damage the circuitry. But now theoretical physicists claim that, in the world of quantum computing, the act of erasing data might actually cool a computer."