E. F. Block
At this date in time, the real quality of quantum computing is all smoke and mirrors! If you want to use Shor's Algorithm (https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=shor%20algorithm) to factor large prime numbers or use Grover's algorithm (https://en.wikipedia.org/wiki/Grover%27s_algorithm) to obstensibly search a database, you are good. However, for all else, the scientists/programmers have nothing to offer. They are still stuck in the world of 2-D matrices instead of using 3-D matrices and holographic representation. It is possible to create a 3-D "Bloch" sphere using the Pauli Gates with entanglement and control. However, it is not yet possible to map to any point on the surface of the sphere or inside of it to establish a datum point. As I said, it is all but smoke and mirrors!