Practical quantum electronics - on its way ;)

''
...
use conventional electronics--tiny semiconductor transistors--to control the state of a quantum system.
...
The team ... found that it could control the quantum state of a single electron simply by altering the voltage applied to a transistor.
...
The researchers used prefabricated transistors built for nanotech research, each of which consisted of two crossed silicon nanowires. One of the nanowires--the bottom one--was connected to electrodes that contained arsenic. When that wire was charged, it would sometimes draw arsenic atoms into the transistor. After applying a voltage across about 100 transistors, the team found six that appeared to have individual arsenic atoms embedded in the nanowire. They then found that varying the voltage across the top wire would control the quantum state of one of the atom's electrons. Using an imaging technique called scanning tunneling spectroscopy, they were able to distinguish three states of the atoms in all six devices. One of those states corresponded with the electron's being in two places at the same time--a property necessary for quantum computing.
...
''

History in the making!

Article here.