The Limits of Quantum Computing

In the March Sciam, an article "The Limits of Quantum Computing", a very good overview of the idea of quantum computing and it's limitations. Though the Sciam article is not onine, there is a draft by Scott Aaronson available. Introduction to the complexity of problems realm and how it relates to real-world problems. Though this is important stuff, it is technical and only people with a strong topical interest in math should venture in. The Wpedia also covers the topic well. The published Sciam article does it's best to dumb down the topic with pictures. Where exactly has the Scientific American gone? Read it since the 60s, and now it has abandoned anything other than pop-sci masquerading as depth.

Aaronson is an MIT Prof well known for publishing in this area. Notable is his complexity zoo site. And his blog. The article is also interestingly described and commented on in Slashdot.